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Finding the Fourth Proportional to 710,342.94, 980,308.26 and 404,425.38

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Solution

The fourth proportional to 710,342.94, 980,308.26 and 404,425.38 is: 558,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,342.94 : 980,308.26 = 404,425.38 : x
  2. Step 2: Convert to fraction form
    710,342.94/980,308.26 = 404,425.38/x
  3. Step 3: Cross multiply
    710,342.94x = 980,308.26 × 404,425.38
  4. Step 4: Simplify right side
    710,342.94x = 396,461,544,243.80
  5. Step 5: Solve for x
    x = 396,461,544,243.80/710,342.94
  6. Step 6: Final answer
    x = 558,126.96

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1.5x scale

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.