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Finding the Fourth Proportional to 710,416.17, 980,373.78 and 404,476.74

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Solution

The fourth proportional to 710,416.17, 980,373.78 and 404,476.74 is: 558,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,416.17 : 980,373.78 = 404,476.74 : x
  2. Step 2: Convert to fraction form
    710,416.17/980,373.78 = 404,476.74/x
  3. Step 3: Cross multiply
    710,416.17x = 980,373.78 × 404,476.74
  4. Step 4: Simplify right side
    710,416.17x = 396,538,390,515.88
  5. Step 5: Solve for x
    x = 396,538,390,515.88/710,416.17
  6. Step 6: Final answer
    x = 558,177.60

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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.