Home / 1,029,931.20-1,545,042.60-319,885.20

Finding the Fourth Proportional to 1,029,931.20, 1,545,042.60 and 319,885.20

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Solution

The fourth proportional to 1,029,931.20, 1,545,042.60 and 319,885.20 is: 479,873.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,931.20 : 1,545,042.60 = 319,885.20 : x
  2. Step 2: Convert to fraction form
    1,029,931.20/1,545,042.60 = 319,885.20/x
  3. Step 3: Cross multiply
    1,029,931.20x = 1,545,042.60 × 319,885.20
  4. Step 4: Simplify right side
    1,029,931.20x = 494,236,261,109.52
  5. Step 5: Solve for x
    x = 494,236,261,109.52/1,029,931.20
  6. Step 6: Final answer
    x = 479,873.08

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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.