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Finding the Fourth Proportional to 724,417.73, 999,646.46 and 402,102.46

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Solution

The fourth proportional to 724,417.73, 999,646.46 and 402,102.46 is: 554,873.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,417.73 : 999,646.46 = 402,102.46 : x
  2. Step 2: Convert to fraction form
    724,417.73/999,646.46 = 402,102.46/x
  3. Step 3: Cross multiply
    724,417.73x = 999,646.46 × 402,102.46
  4. Step 4: Simplify right side
    724,417.73x = 401,960,295,698.06
  5. Step 5: Solve for x
    x = 401,960,295,698.06/724,417.73
  6. Step 6: Final answer
    x = 554,873.63

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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.