Home / 1,123,587.60-1,685,381.40-324,895.20

Finding the Fourth Proportional to 1,123,587.60, 1,685,381.40 and 324,895.20

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Solution

The fourth proportional to 1,123,587.60, 1,685,381.40 and 324,895.20 is: 487,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,587.60 : 1,685,381.40 = 324,895.20 : x
  2. Step 2: Convert to fraction form
    1,123,587.60/1,685,381.40 = 324,895.20/x
  3. Step 3: Cross multiply
    1,123,587.60x = 1,685,381.40 × 324,895.20
  4. Step 4: Simplify right side
    1,123,587.60x = 547,572,327,029.28
  5. Step 5: Solve for x
    x = 547,572,327,029.28/1,123,587.60
  6. Step 6: Final answer
    x = 487,342.80

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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.