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Finding the Fourth Proportional to 991,011.60, 1,368,163.44 and 652,464

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Solution

The fourth proportional to 991,011.60, 1,368,163.44 and 652,464 is: 900,773.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,011.60 : 1,368,163.44 = 652,464 : x
  2. Step 2: Convert to fraction form
    991,011.60/1,368,163.44 = 652,464/x
  3. Step 3: Cross multiply
    991,011.60x = 1,368,163.44 × 652,464
  4. Step 4: Simplify right side
    991,011.60x = 892,677,390,716.16
  5. Step 5: Solve for x
    x = 892,677,390,716.16/991,011.60
  6. Step 6: Final answer
    x = 900,773.91

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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.