Home / 487,047.53-672,155.43-272,204.75

Finding the Fourth Proportional to 487,047.53, 672,155.43 and 272,204.75

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Solution

The fourth proportional to 487,047.53, 672,155.43 and 272,204.75 is: 375,659.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,047.53 : 672,155.43 = 272,204.75 : x
  2. Step 2: Convert to fraction form
    487,047.53/672,155.43 = 272,204.75/x
  3. Step 3: Cross multiply
    487,047.53x = 672,155.43 × 272,204.75
  4. Step 4: Simplify right side
    487,047.53x = 182,963,900,784.29
  5. Step 5: Solve for x
    x = 182,963,900,784.29/487,047.53
  6. Step 6: Final answer
    x = 375,659.23

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1.5x scale

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.