Home / 838,822.91-1,258,238.30-358,980.53

Finding the Fourth Proportional to 838,822.91, 1,258,238.30 and 358,980.53

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Solution

The fourth proportional to 838,822.91, 1,258,238.30 and 358,980.53 is: 538,472.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,822.91 : 1,258,238.30 = 358,980.53 : x
  2. Step 2: Convert to fraction form
    838,822.91/1,258,238.30 = 358,980.53/x
  3. Step 3: Cross multiply
    838,822.91x = 1,258,238.30 × 358,980.53
  4. Step 4: Simplify right side
    838,822.91x = 451,683,043,714.21
  5. Step 5: Solve for x
    x = 451,683,043,714.21/838,822.91
  6. Step 6: Final answer
    x = 538,472.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.