Home / 427,614.02-642,251.40-314,848.86

Finding the Fourth Proportional to 427,614.02, 642,251.40 and 314,848.86

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Solution

The fourth proportional to 427,614.02, 642,251.40 and 314,848.86 is: 472,884.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,614.02 : 642,251.40 = 314,848.86 : x
  2. Step 2: Convert to fraction form
    427,614.02/642,251.40 = 314,848.86/x
  3. Step 3: Cross multiply
    427,614.02x = 642,251.40 × 314,848.86
  4. Step 4: Simplify right side
    427,614.02x = 202,212,117,534.28
  5. Step 5: Solve for x
    x = 202,212,117,534.28/427,614.02
  6. Step 6: Final answer
    x = 472,884.68

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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.