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Finding the Fourth Proportional to 519,937.60, 779,906.40 and 488,444.80

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Solution

The fourth proportional to 519,937.60, 779,906.40 and 488,444.80 is: 732,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,937.60 : 779,906.40 = 488,444.80 : x
  2. Step 2: Convert to fraction form
    519,937.60/779,906.40 = 488,444.80/x
  3. Step 3: Cross multiply
    519,937.60x = 779,906.40 × 488,444.80
  4. Step 4: Simplify right side
    519,937.60x = 380,941,225,566.72
  5. Step 5: Solve for x
    x = 380,941,225,566.72/519,937.60
  6. Step 6: Final answer
    x = 732,667.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.