Home / 487,491.84-672,733.92-272,629.44

Finding the Fourth Proportional to 487,491.84, 672,733.92 and 272,629.44

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Solution

The fourth proportional to 487,491.84, 672,733.92 and 272,629.44 is: 376,225.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,491.84 : 672,733.92 = 272,629.44 : x
  2. Step 2: Convert to fraction form
    487,491.84/672,733.92 = 272,629.44/x
  3. Step 3: Cross multiply
    487,491.84x = 672,733.92 × 272,629.44
  4. Step 4: Simplify right side
    487,491.84x = 183,407,071,878.61
  5. Step 5: Solve for x
    x = 183,407,071,878.61/487,491.84
  6. Step 6: Final answer
    x = 376,225.93

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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.