Home / 487,106.46-672,238.44-272,255.58

Finding the Fourth Proportional to 487,106.46, 672,238.44 and 272,255.58

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Solution

The fourth proportional to 487,106.46, 672,238.44 and 272,255.58 is: 375,730.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,106.46 : 672,238.44 = 272,255.58 : x
  2. Step 2: Convert to fraction form
    487,106.46/672,238.44 = 272,255.58/x
  3. Step 3: Cross multiply
    487,106.46x = 672,238.44 × 272,255.58
  4. Step 4: Simplify right side
    487,106.46x = 183,020,666,380.50
  5. Step 5: Solve for x
    x = 183,020,666,380.50/487,106.46
  6. Step 6: Final answer
    x = 375,730.32

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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.