Home / 724,949.79-1,000,402.86-402,680.44

Finding the Fourth Proportional to 724,949.79, 1,000,402.86 and 402,680.44

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Solution

The fourth proportional to 724,949.79, 1,000,402.86 and 402,680.44 is: 555,683.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,949.79 : 1,000,402.86 = 402,680.44 : x
  2. Step 2: Convert to fraction form
    724,949.79/1,000,402.86 = 402,680.44/x
  3. Step 3: Cross multiply
    724,949.79x = 1,000,402.86 × 402,680.44
  4. Step 4: Simplify right side
    724,949.79x = 402,842,663,842.06
  5. Step 5: Solve for x
    x = 402,842,663,842.06/724,949.79
  6. Step 6: Final answer
    x = 555,683.54

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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.