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Finding the Fourth Proportional to 572,770.60, 858,378.30 and 406,364.20

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Solution

The fourth proportional to 572,770.60, 858,378.30 and 406,364.20 is: 608,994.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,770.60 : 858,378.30 = 406,364.20 : x
  2. Step 2: Convert to fraction form
    572,770.60/858,378.30 = 406,364.20/x
  3. Step 3: Cross multiply
    572,770.60x = 858,378.30 × 406,364.20
  4. Step 4: Simplify right side
    572,770.60x = 348,814,211,176.86
  5. Step 5: Solve for x
    x = 348,814,211,176.86/572,770.60
  6. Step 6: Final answer
    x = 608,994.62

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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.