Home / 749,412.30-1,123,729.65-275,853.90

Finding the Fourth Proportional to 749,412.30, 1,123,729.65 and 275,853.90

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Solution

The fourth proportional to 749,412.30, 1,123,729.65 and 275,853.90 is: 413,637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,412.30 : 1,123,729.65 = 275,853.90 : x
  2. Step 2: Convert to fraction form
    749,412.30/1,123,729.65 = 275,853.90/x
  3. Step 3: Cross multiply
    749,412.30x = 1,123,729.65 × 275,853.90
  4. Step 4: Simplify right side
    749,412.30x = 309,985,206,498.14
  5. Step 5: Solve for x
    x = 309,985,206,498.14/749,412.30
  6. Step 6: Final answer
    x = 413,637.74

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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.