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Finding the Fourth Proportional to 615,550.60, 923,325.90 and 578,225.80

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Solution

The fourth proportional to 615,550.60, 923,325.90 and 578,225.80 is: 867,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,550.60 : 923,325.90 = 578,225.80 : x
  2. Step 2: Convert to fraction form
    615,550.60/923,325.90 = 578,225.80/x
  3. Step 3: Cross multiply
    615,550.60x = 923,325.90 × 578,225.80
  4. Step 4: Simplify right side
    615,550.60x = 533,890,857,188.22
  5. Step 5: Solve for x
    x = 533,890,857,188.22/615,550.60
  6. Step 6: Final answer
    x = 867,338.70

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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.