Home / 463,315.95-639,148.19-291,442.59

Finding the Fourth Proportional to 463,315.95, 639,148.19 and 291,442.59

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Solution

The fourth proportional to 463,315.95, 639,148.19 and 291,442.59 is: 402,047.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,315.95 : 639,148.19 = 291,442.59 : x
  2. Step 2: Convert to fraction form
    463,315.95/639,148.19 = 291,442.59/x
  3. Step 3: Cross multiply
    463,315.95x = 639,148.19 × 291,442.59
  4. Step 4: Simplify right side
    463,315.95x = 186,275,002,430.20
  5. Step 5: Solve for x
    x = 186,275,002,430.20/463,315.95
  6. Step 6: Final answer
    x = 402,047.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.