Home / 813,155.77-1,122,171.21-473,645.89

Finding the Fourth Proportional to 813,155.77, 1,122,171.21 and 473,645.89

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Solution

The fourth proportional to 813,155.77, 1,122,171.21 and 473,645.89 is: 653,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,155.77 : 1,122,171.21 = 473,645.89 : x
  2. Step 2: Convert to fraction form
    813,155.77/1,122,171.21 = 473,645.89/x
  3. Step 3: Cross multiply
    813,155.77x = 1,122,171.21 × 473,645.89
  4. Step 4: Simplify right side
    813,155.77x = 531,511,781,492.83
  5. Step 5: Solve for x
    x = 531,511,781,492.83/813,155.77
  6. Step 6: Final answer
    x = 653,640.79

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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.