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Finding the Fourth Proportional to 710,498.18, 980,494.37 and 388,208.24

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Solution

The fourth proportional to 710,498.18, 980,494.37 and 388,208.24 is: 535,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,498.18 : 980,494.37 = 388,208.24 : x
  2. Step 2: Convert to fraction form
    710,498.18/980,494.37 = 388,208.24/x
  3. Step 3: Cross multiply
    710,498.18x = 980,494.37 × 388,208.24
  4. Step 4: Simplify right side
    710,498.18x = 380,635,995,673.58
  5. Step 5: Solve for x
    x = 380,635,995,673.58/710,498.18
  6. Step 6: Final answer
    x = 535,731.14

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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.