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Finding the Fourth Proportional to 710,470.08, 980,448.12 and 404,530.92

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Solution

The fourth proportional to 710,470.08, 980,448.12 and 404,530.92 is: 558,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,470.08 : 980,448.12 = 404,530.92 : x
  2. Step 2: Convert to fraction form
    710,470.08/980,448.12 = 404,530.92/x
  3. Step 3: Cross multiply
    710,470.08x = 980,448.12 × 404,530.92
  4. Step 4: Simplify right side
    710,470.08x = 396,621,579,995.87
  5. Step 5: Solve for x
    x = 396,621,579,995.87/710,470.08
  6. Step 6: Final answer
    x = 558,252.33

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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.