Home / 1,138,003.02-1,707,254.42-428,031.14

Finding the Fourth Proportional to 1,138,003.02, 1,707,254.42 and 428,031.14

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Solution

The fourth proportional to 1,138,003.02, 1,707,254.42 and 428,031.14 is: 642,140.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,003.02 : 1,707,254.42 = 428,031.14 : x
  2. Step 2: Convert to fraction form
    1,138,003.02/1,707,254.42 = 428,031.14/x
  3. Step 3: Cross multiply
    1,138,003.02x = 1,707,254.42 × 428,031.14
  4. Step 4: Simplify right side
    1,138,003.02x = 730,758,044,986.21
  5. Step 5: Solve for x
    x = 730,758,044,986.21/1,138,003.02
  6. Step 6: Final answer
    x = 642,140.69

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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.