Home / 840,729.24-1,261,058.58-391,295.52

Finding the Fourth Proportional to 840,729.24, 1,261,058.58 and 391,295.52

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Solution

The fourth proportional to 840,729.24, 1,261,058.58 and 391,295.52 is: 586,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,729.24 : 1,261,058.58 = 391,295.52 : x
  2. Step 2: Convert to fraction form
    840,729.24/1,261,058.58 = 391,295.52/x
  3. Step 3: Cross multiply
    840,729.24x = 1,261,058.58 × 391,295.52
  4. Step 4: Simplify right side
    840,729.24x = 493,446,572,811.56
  5. Step 5: Solve for x
    x = 493,446,572,811.56/840,729.24
  6. Step 6: Final answer
    x = 586,926.86

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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.