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Finding the Fourth Proportional to 608,385.60, 910,828.80 and 372,189.60

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Solution

The fourth proportional to 608,385.60, 910,828.80 and 372,189.60 is: 557,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,385.60 : 910,828.80 = 372,189.60 : x
  2. Step 2: Convert to fraction form
    608,385.60/910,828.80 = 372,189.60/x
  3. Step 3: Cross multiply
    608,385.60x = 910,828.80 × 372,189.60
  4. Step 4: Simplify right side
    608,385.60x = 339,001,006,740.48
  5. Step 5: Solve for x
    x = 339,001,006,740.48/608,385.60
  6. Step 6: Final answer
    x = 557,214.05

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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.