Home / 487,644.98-672,976.23-272,772.23

Finding the Fourth Proportional to 487,644.98, 672,976.23 and 272,772.23

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Solution

The fourth proportional to 487,644.98, 672,976.23 and 272,772.23 is: 376,440.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,644.98 : 672,976.23 = 272,772.23 : x
  2. Step 2: Convert to fraction form
    487,644.98/672,976.23 = 272,772.23/x
  3. Step 3: Cross multiply
    487,644.98x = 672,976.23 × 272,772.23
  4. Step 4: Simplify right side
    487,644.98x = 183,569,226,994.09
  5. Step 5: Solve for x
    x = 183,569,226,994.09/487,644.98
  6. Step 6: Final answer
    x = 376,440.31

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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.