Home / 753,142.52-1,039,349.16-408,979.16

Finding the Fourth Proportional to 753,142.52, 1,039,349.16 and 408,979.16

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Solution

The fourth proportional to 753,142.52, 1,039,349.16 and 408,979.16 is: 564,398.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,142.52 : 1,039,349.16 = 408,979.16 : x
  2. Step 2: Convert to fraction form
    753,142.52/1,039,349.16 = 408,979.16/x
  3. Step 3: Cross multiply
    753,142.52x = 1,039,349.16 × 408,979.16
  4. Step 4: Simplify right side
    753,142.52x = 425,072,146,403.51
  5. Step 5: Solve for x
    x = 425,072,146,403.51/753,142.52
  6. Step 6: Final answer
    x = 564,398.02

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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.