Home / 724,806.99-1,000,247.20-402,547.28

Finding the Fourth Proportional to 724,806.99, 1,000,247.20 and 402,547.28

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Solution

The fourth proportional to 724,806.99, 1,000,247.20 and 402,547.28 is: 555,522.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,806.99 : 1,000,247.20 = 402,547.28 : x
  2. Step 2: Convert to fraction form
    724,806.99/1,000,247.20 = 402,547.28/x
  3. Step 3: Cross multiply
    724,806.99x = 1,000,247.20 × 402,547.28
  4. Step 4: Simplify right side
    724,806.99x = 402,646,789,687.62
  5. Step 5: Solve for x
    x = 402,646,789,687.62/724,806.99
  6. Step 6: Final answer
    x = 555,522.77

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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.