Home / 722,570.70-1,083,856.05-455,465.10

Finding the Fourth Proportional to 722,570.70, 1,083,856.05 and 455,465.10

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Solution

The fourth proportional to 722,570.70, 1,083,856.05 and 455,465.10 is: 683,197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,570.70 : 1,083,856.05 = 455,465.10 : x
  2. Step 2: Convert to fraction form
    722,570.70/1,083,856.05 = 455,465.10/x
  3. Step 3: Cross multiply
    722,570.70x = 1,083,856.05 × 455,465.10
  4. Step 4: Simplify right side
    722,570.70x = 493,658,604,198.86
  5. Step 5: Solve for x
    x = 493,658,604,198.86/722,570.70
  6. Step 6: Final answer
    x = 683,197.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.