Home / 579,687.60-869,531.40-158,962.80

Finding the Fourth Proportional to 579,687.60, 869,531.40 and 158,962.80

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Solution

The fourth proportional to 579,687.60, 869,531.40 and 158,962.80 is: 238,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,687.60 : 869,531.40 = 158,962.80 : x
  2. Step 2: Convert to fraction form
    579,687.60/869,531.40 = 158,962.80/x
  3. Step 3: Cross multiply
    579,687.60x = 869,531.40 × 158,962.80
  4. Step 4: Simplify right side
    579,687.60x = 138,223,146,031.92
  5. Step 5: Solve for x
    x = 138,223,146,031.92/579,687.60
  6. Step 6: Final answer
    x = 238,444.20

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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.