Home / 487,259.32-672,414.78-272,398.36

Finding the Fourth Proportional to 487,259.32, 672,414.78 and 272,398.36

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Solution

The fourth proportional to 487,259.32, 672,414.78 and 272,398.36 is: 375,908.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,259.32 : 672,414.78 = 272,398.36 : x
  2. Step 2: Convert to fraction form
    487,259.32/672,414.78 = 272,398.36/x
  3. Step 3: Cross multiply
    487,259.32x = 672,414.78 × 272,398.36
  4. Step 4: Simplify right side
    487,259.32x = 183,164,683,311.76
  5. Step 5: Solve for x
    x = 183,164,683,311.76/487,259.32
  6. Step 6: Final answer
    x = 375,908.01

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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.