Home / 452,769.90-679,932.45-320,577.90

Finding the Fourth Proportional to 452,769.90, 679,932.45 and 320,577.90

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Solution

The fourth proportional to 452,769.90, 679,932.45 and 320,577.90 is: 481,417.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,769.90 : 679,932.45 = 320,577.90 : x
  2. Step 2: Convert to fraction form
    452,769.90/679,932.45 = 320,577.90/x
  3. Step 3: Cross multiply
    452,769.90x = 679,932.45 × 320,577.90
  4. Step 4: Simplify right side
    452,769.90x = 217,971,316,962.86
  5. Step 5: Solve for x
    x = 217,971,316,962.86/452,769.90
  6. Step 6: Final answer
    x = 481,417.42

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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.