Home / 1,386,237.60-2,077,801.20-712,058.40

Finding the Fourth Proportional to 1,386,237.60, 2,077,801.20 and 712,058.40

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Solution

The fourth proportional to 1,386,237.60, 2,077,801.20 and 712,058.40 is: 1,067,288.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,237.60 : 2,077,801.20 = 712,058.40 : x
  2. Step 2: Convert to fraction form
    1,386,237.60/2,077,801.20 = 712,058.40/x
  3. Step 3: Cross multiply
    1,386,237.60x = 2,077,801.20 × 712,058.40
  4. Step 4: Simplify right side
    1,386,237.60x = 1,479,515,797,990.08
  5. Step 5: Solve for x
    x = 1,479,515,797,990.08/1,386,237.60
  6. Step 6: Final answer
    x = 1,067,288.75

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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.