Home / 724,916.33-1,000,356.86-402,647.10

Finding the Fourth Proportional to 724,916.33, 1,000,356.86 and 402,647.10

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Solution

The fourth proportional to 724,916.33, 1,000,356.86 and 402,647.10 is: 555,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,916.33 : 1,000,356.86 = 402,647.10 : x
  2. Step 2: Convert to fraction form
    724,916.33/1,000,356.86 = 402,647.10/x
  3. Step 3: Cross multiply
    724,916.33x = 1,000,356.86 × 402,647.10
  4. Step 4: Simplify right side
    724,916.33x = 402,790,785,899.39
  5. Step 5: Solve for x
    x = 402,790,785,899.39/724,916.33
  6. Step 6: Final answer
    x = 555,637.62

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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.