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Finding the Fourth Proportional to 643,135.72, 960,019.53 and 595,702.12

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Solution

The fourth proportional to 643,135.72, 960,019.53 and 595,702.12 is: 889,214.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,135.72 : 960,019.53 = 595,702.12 : x
  2. Step 2: Convert to fraction form
    643,135.72/960,019.53 = 595,702.12/x
  3. Step 3: Cross multiply
    643,135.72x = 960,019.53 × 595,702.12
  4. Step 4: Simplify right side
    643,135.72x = 571,885,669,262.40
  5. Step 5: Solve for x
    x = 571,885,669,262.40/643,135.72
  6. Step 6: Final answer
    x = 889,214.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.