Home / 831,587.20-1,245,307.20-665,699.20

Finding the Fourth Proportional to 831,587.20, 1,245,307.20 and 665,699.20

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Solution

The fourth proportional to 831,587.20, 1,245,307.20 and 665,699.20 is: 996,888.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,587.20 : 1,245,307.20 = 665,699.20 : x
  2. Step 2: Convert to fraction form
    831,587.20/1,245,307.20 = 665,699.20/x
  3. Step 3: Cross multiply
    831,587.20x = 1,245,307.20 × 665,699.20
  4. Step 4: Simplify right side
    831,587.20x = 829,000,006,794.24
  5. Step 5: Solve for x
    x = 829,000,006,794.24/831,587.20
  6. Step 6: Final answer
    x = 996,888.85

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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.