Home / 1,386,927.40-2,080,391.10-907,925.80

Finding the Fourth Proportional to 1,386,927.40, 2,080,391.10 and 907,925.80

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Solution

The fourth proportional to 1,386,927.40, 2,080,391.10 and 907,925.80 is: 1,361,888.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,927.40 : 2,080,391.10 = 907,925.80 : x
  2. Step 2: Convert to fraction form
    1,386,927.40/2,080,391.10 = 907,925.80/x
  3. Step 3: Cross multiply
    1,386,927.40x = 2,080,391.10 × 907,925.80
  4. Step 4: Simplify right side
    1,386,927.40x = 1,888,840,753,780.38
  5. Step 5: Solve for x
    x = 1,888,840,753,780.38/1,386,927.40
  6. Step 6: Final answer
    x = 1,361,888.70

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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.