Home / 724,310.72-999,533.76-402,001.92

Finding the Fourth Proportional to 724,310.72, 999,533.76 and 402,001.92

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Solution

The fourth proportional to 724,310.72, 999,533.76 and 402,001.92 is: 554,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,310.72 : 999,533.76 = 402,001.92 : x
  2. Step 2: Convert to fraction form
    724,310.72/999,533.76 = 402,001.92/x
  3. Step 3: Cross multiply
    724,310.72x = 999,533.76 × 402,001.92
  4. Step 4: Simplify right side
    724,310.72x = 401,814,490,624.82
  5. Step 5: Solve for x
    x = 401,814,490,624.82/724,310.72
  6. Step 6: Final answer
    x = 554,754.31

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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.