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Finding the Fourth Proportional to 653,113.94, 979,419.33 and 253,702.13

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Solution

The fourth proportional to 653,113.94, 979,419.33 and 253,702.13 is: 380,455.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,113.94 : 979,419.33 = 253,702.13 : x
  2. Step 2: Convert to fraction form
    653,113.94/979,419.33 = 253,702.13/x
  3. Step 3: Cross multiply
    653,113.94x = 979,419.33 × 253,702.13
  4. Step 4: Simplify right side
    653,113.94x = 248,480,765,287.08
  5. Step 5: Solve for x
    x = 248,480,765,287.08/653,113.94
  6. Step 6: Final answer
    x = 380,455.46

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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.