Home / 487,645.25-672,976.58-272,772.50

Finding the Fourth Proportional to 487,645.25, 672,976.58 and 272,772.50

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Solution

The fourth proportional to 487,645.25, 672,976.58 and 272,772.50 is: 376,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,645.25 : 672,976.58 = 272,772.50 : x
  2. Step 2: Convert to fraction form
    487,645.25/672,976.58 = 272,772.50/x
  3. Step 3: Cross multiply
    487,645.25x = 672,976.58 × 272,772.50
  4. Step 4: Simplify right side
    487,645.25x = 183,569,499,439.31
  5. Step 5: Solve for x
    x = 183,569,499,439.31/487,645.25
  6. Step 6: Final answer
    x = 376,440.66

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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.