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Finding the Fourth Proportional to 710,380.16, 980,369.88 and 404,483.28

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Solution

The fourth proportional to 710,380.16, 980,369.88 and 404,483.28 is: 558,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,380.16 : 980,369.88 = 404,483.28 : x
  2. Step 2: Convert to fraction form
    710,380.16/980,369.88 = 404,483.28/x
  3. Step 3: Cross multiply
    710,380.16x = 980,369.88 × 404,483.28
  4. Step 4: Simplify right side
    710,380.16x = 396,543,224,675.61
  5. Step 5: Solve for x
    x = 396,543,224,675.61/710,380.16
  6. Step 6: Final answer
    x = 558,212.70

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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.