Home / 487,587.28-672,932.76-272,739.28

Finding the Fourth Proportional to 487,587.28, 672,932.76 and 272,739.28

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Solution

The fourth proportional to 487,587.28, 672,932.76 and 272,739.28 is: 376,415.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,587.28 : 672,932.76 = 272,739.28 : x
  2. Step 2: Convert to fraction form
    487,587.28/672,932.76 = 272,739.28/x
  3. Step 3: Cross multiply
    487,587.28x = 672,932.76 × 272,739.28
  4. Step 4: Simplify right side
    487,587.28x = 183,535,196,450.81
  5. Step 5: Solve for x
    x = 183,535,196,450.81/487,587.28
  6. Step 6: Final answer
    x = 376,415.06

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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.