Home / 762,609.30-1,052,365.52-418,436.64

Finding the Fourth Proportional to 762,609.30, 1,052,365.52 and 418,436.64

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Solution

The fourth proportional to 762,609.30, 1,052,365.52 and 418,436.64 is: 577,423.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,609.30 : 1,052,365.52 = 418,436.64 : x
  2. Step 2: Convert to fraction form
    762,609.30/1,052,365.52 = 418,436.64/x
  3. Step 3: Cross multiply
    762,609.30x = 1,052,365.52 × 418,436.64
  4. Step 4: Simplify right side
    762,609.30x = 440,348,292,240.65
  5. Step 5: Solve for x
    x = 440,348,292,240.65/762,609.30
  6. Step 6: Final answer
    x = 577,423.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.