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Finding the Fourth Proportional to 615,742.20, 923,613.30 and 573,751.80

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Solution

The fourth proportional to 615,742.20, 923,613.30 and 573,751.80 is: 860,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,742.20 : 923,613.30 = 573,751.80 : x
  2. Step 2: Convert to fraction form
    615,742.20/923,613.30 = 573,751.80/x
  3. Step 3: Cross multiply
    615,742.20x = 923,613.30 × 573,751.80
  4. Step 4: Simplify right side
    615,742.20x = 529,924,793,378.94
  5. Step 5: Solve for x
    x = 529,924,793,378.94/615,742.20
  6. Step 6: Final answer
    x = 860,627.70

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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.