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Finding the Fourth Proportional to 724,424.30, 999,809.49 and 434,047.33

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Solution

The fourth proportional to 724,424.30, 999,809.49 and 434,047.33 is: 599,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,424.30 : 999,809.49 = 434,047.33 : x
  2. Step 2: Convert to fraction form
    724,424.30/999,809.49 = 434,047.33/x
  3. Step 3: Cross multiply
    724,424.30x = 999,809.49 × 434,047.33
  4. Step 4: Simplify right side
    724,424.30x = 433,964,639,643.16
  5. Step 5: Solve for x
    x = 433,964,639,643.16/724,424.30
  6. Step 6: Final answer
    x = 599,047.60

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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.