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Finding the Fourth Proportional to 724,215.46, 998,962.73 and 429,656.63

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Solution

The fourth proportional to 724,215.46, 998,962.73 and 429,656.63 is: 592,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,215.46 : 998,962.73 = 429,656.63 : x
  2. Step 2: Convert to fraction form
    724,215.46/998,962.73 = 429,656.63/x
  3. Step 3: Cross multiply
    724,215.46x = 998,962.73 × 429,656.63
  4. Step 4: Simplify right side
    724,215.46x = 429,210,965,780.54
  5. Step 5: Solve for x
    x = 429,210,965,780.54/724,215.46
  6. Step 6: Final answer
    x = 592,656.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.