Home / 1,187,130.60-1,782,008.10-738,358.20

Finding the Fourth Proportional to 1,187,130.60, 1,782,008.10 and 738,358.20

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Solution

The fourth proportional to 1,187,130.60, 1,782,008.10 and 738,358.20 is: 1,108,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,130.60 : 1,782,008.10 = 738,358.20 : x
  2. Step 2: Convert to fraction form
    1,187,130.60/1,782,008.10 = 738,358.20/x
  3. Step 3: Cross multiply
    1,187,130.60x = 1,782,008.10 × 738,358.20
  4. Step 4: Simplify right side
    1,187,130.60x = 1,315,760,293,101.42
  5. Step 5: Solve for x
    x = 1,315,760,293,101.42/1,187,130.60
  6. Step 6: Final answer
    x = 1,108,353.45

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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.