Home / 830,718.83-1,146,774.68-486,506.90

Finding the Fourth Proportional to 830,718.83, 1,146,774.68 and 486,506.90

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Solution

The fourth proportional to 830,718.83, 1,146,774.68 and 486,506.90 is: 671,603.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,718.83 : 1,146,774.68 = 486,506.90 : x
  2. Step 2: Convert to fraction form
    830,718.83/1,146,774.68 = 486,506.90/x
  3. Step 3: Cross multiply
    830,718.83x = 1,146,774.68 × 486,506.90
  4. Step 4: Simplify right side
    830,718.83x = 557,913,798,648.50
  5. Step 5: Solve for x
    x = 557,913,798,648.50/830,718.83
  6. Step 6: Final answer
    x = 671,603.65

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.