Home / 687,476.24-948,702.93-381,534.85

Finding the Fourth Proportional to 687,476.24, 948,702.93 and 381,534.85

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Solution

The fourth proportional to 687,476.24, 948,702.93 and 381,534.85 is: 526,510.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,476.24 : 948,702.93 = 381,534.85 : x
  2. Step 2: Convert to fraction form
    687,476.24/948,702.93 = 381,534.85/x
  3. Step 3: Cross multiply
    687,476.24x = 948,702.93 × 381,534.85
  4. Step 4: Simplify right side
    687,476.24x = 361,963,225,348.60
  5. Step 5: Solve for x
    x = 361,963,225,348.60/687,476.24
  6. Step 6: Final answer
    x = 526,510.16

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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.