Home / 917,230.80-1,376,064.90-443,526.60

Finding the Fourth Proportional to 917,230.80, 1,376,064.90 and 443,526.60

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Solution

The fourth proportional to 917,230.80, 1,376,064.90 and 443,526.60 is: 665,395.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,230.80 : 1,376,064.90 = 443,526.60 : x
  2. Step 2: Convert to fraction form
    917,230.80/1,376,064.90 = 443,526.60/x
  3. Step 3: Cross multiply
    917,230.80x = 1,376,064.90 × 443,526.60
  4. Step 4: Simplify right side
    917,230.80x = 610,321,386,476.34
  5. Step 5: Solve for x
    x = 610,321,386,476.34/917,230.80
  6. Step 6: Final answer
    x = 665,395.65

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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.