Home / 487,017.02-672,081.54-272,157.02

Finding the Fourth Proportional to 487,017.02, 672,081.54 and 272,157.02

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Solution

The fourth proportional to 487,017.02, 672,081.54 and 272,157.02 is: 375,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,017.02 : 672,081.54 = 272,157.02 : x
  2. Step 2: Convert to fraction form
    487,017.02/672,081.54 = 272,157.02/x
  3. Step 3: Cross multiply
    487,017.02x = 672,081.54 × 272,157.02
  4. Step 4: Simplify right side
    487,017.02x = 182,911,709,123.41
  5. Step 5: Solve for x
    x = 182,911,709,123.41/487,017.02
  6. Step 6: Final answer
    x = 375,575.60

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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.