Home / 487,550.70-672,765.60-272,686.46

Finding the Fourth Proportional to 487,550.70, 672,765.60 and 272,686.46

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Solution

The fourth proportional to 487,550.70, 672,765.60 and 272,686.46 is: 376,276.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,550.70 : 672,765.60 = 272,686.46 : x
  2. Step 2: Convert to fraction form
    487,550.70/672,765.60 = 272,686.46/x
  3. Step 3: Cross multiply
    487,550.70x = 672,765.60 × 272,686.46
  4. Step 4: Simplify right side
    487,550.70x = 183,454,069,873.78
  5. Step 5: Solve for x
    x = 183,454,069,873.78/487,550.70
  6. Step 6: Final answer
    x = 376,276.91

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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.