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Finding the Fourth Proportional to 574,853.60, 862,280.40 and 518,866.40

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Solution

The fourth proportional to 574,853.60, 862,280.40 and 518,866.40 is: 778,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,853.60 : 862,280.40 = 518,866.40 : x
  2. Step 2: Convert to fraction form
    574,853.60/862,280.40 = 518,866.40/x
  3. Step 3: Cross multiply
    574,853.60x = 862,280.40 × 518,866.40
  4. Step 4: Simplify right side
    574,853.60x = 447,408,326,938.56
  5. Step 5: Solve for x
    x = 447,408,326,938.56/574,853.60
  6. Step 6: Final answer
    x = 778,299.60

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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.