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Finding the Fourth Proportional to 724,097.70, 999,251.51 and 401,807.07

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Solution

The fourth proportional to 724,097.70, 999,251.51 and 401,807.07 is: 554,491.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,097.70 : 999,251.51 = 401,807.07 : x
  2. Step 2: Convert to fraction form
    724,097.70/999,251.51 = 401,807.07/x
  3. Step 3: Cross multiply
    724,097.70x = 999,251.51 × 401,807.07
  4. Step 4: Simplify right side
    724,097.70x = 401,506,319,417.14
  5. Step 5: Solve for x
    x = 401,506,319,417.14/724,097.70
  6. Step 6: Final answer
    x = 554,491.91

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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.