Home / 487,039.02-672,116.33-272,182.67

Finding the Fourth Proportional to 487,039.02, 672,116.33 and 272,182.67

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Solution

The fourth proportional to 487,039.02, 672,116.33 and 272,182.67 is: 375,613.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,039.02 : 672,116.33 = 272,182.67 : x
  2. Step 2: Convert to fraction form
    487,039.02/672,116.33 = 272,182.67/x
  3. Step 3: Cross multiply
    487,039.02x = 672,116.33 × 272,182.67
  4. Step 4: Simplify right side
    487,039.02x = 182,938,417,250.00
  5. Step 5: Solve for x
    x = 182,938,417,250.00/487,039.02
  6. Step 6: Final answer
    x = 375,613.47

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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.