Home / 1,147,333.90-1,721,000.85-769,420.30

Finding the Fourth Proportional to 1,147,333.90, 1,721,000.85 and 769,420.30

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Solution

The fourth proportional to 1,147,333.90, 1,721,000.85 and 769,420.30 is: 1,154,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,333.90 : 1,721,000.85 = 769,420.30 : x
  2. Step 2: Convert to fraction form
    1,147,333.90/1,721,000.85 = 769,420.30/x
  3. Step 3: Cross multiply
    1,147,333.90x = 1,721,000.85 × 769,420.30
  4. Step 4: Simplify right side
    1,147,333.90x = 1,324,172,990,307.26
  5. Step 5: Solve for x
    x = 1,324,172,990,307.26/1,147,333.90
  6. Step 6: Final answer
    x = 1,154,130.45

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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.