Home / 1,386,011.20-2,077,461.60-787,259.20

Finding the Fourth Proportional to 1,386,011.20, 2,077,461.60 and 787,259.20

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Solution

The fourth proportional to 1,386,011.20, 2,077,461.60 and 787,259.20 is: 1,180,005.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,011.20 : 2,077,461.60 = 787,259.20 : x
  2. Step 2: Convert to fraction form
    1,386,011.20/2,077,461.60 = 787,259.20/x
  3. Step 3: Cross multiply
    1,386,011.20x = 2,077,461.60 × 787,259.20
  4. Step 4: Simplify right side
    1,386,011.20x = 1,635,500,757,246.72
  5. Step 5: Solve for x
    x = 1,635,500,757,246.72/1,386,011.20
  6. Step 6: Final answer
    x = 1,180,005.44

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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.