Home / 830,723.84-1,146,781.58-486,511.90

Finding the Fourth Proportional to 830,723.84, 1,146,781.58 and 486,511.90

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Solution

The fourth proportional to 830,723.84, 1,146,781.58 and 486,511.90 is: 671,610.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,723.84 : 1,146,781.58 = 486,511.90 : x
  2. Step 2: Convert to fraction form
    830,723.84/1,146,781.58 = 486,511.90/x
  3. Step 3: Cross multiply
    830,723.84x = 1,146,781.58 × 486,511.90
  4. Step 4: Simplify right side
    830,723.84x = 557,922,885,370.80
  5. Step 5: Solve for x
    x = 557,922,885,370.80/830,723.84
  6. Step 6: Final answer
    x = 671,610.54

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Double scale
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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.