Home / 991,530.62-1,368,730.89-669,676.69

Finding the Fourth Proportional to 991,530.62, 1,368,730.89 and 669,676.69

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Solution

The fourth proportional to 991,530.62, 1,368,730.89 and 669,676.69 is: 924,436.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,530.62 : 1,368,730.89 = 669,676.69 : x
  2. Step 2: Convert to fraction form
    991,530.62/1,368,730.89 = 669,676.69/x
  3. Step 3: Cross multiply
    991,530.62x = 1,368,730.89 × 669,676.69
  4. Step 4: Simplify right side
    991,530.62x = 916,607,171,915.95
  5. Step 5: Solve for x
    x = 916,607,171,915.95/991,530.62
  6. Step 6: Final answer
    x = 924,436.58

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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.