Home / 730,972.20-1,095,000.30-643,297.80

Finding the Fourth Proportional to 730,972.20, 1,095,000.30 and 643,297.80

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Solution

The fourth proportional to 730,972.20, 1,095,000.30 and 643,297.80 is: 963,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,972.20 : 1,095,000.30 = 643,297.80 : x
  2. Step 2: Convert to fraction form
    730,972.20/1,095,000.30 = 643,297.80/x
  3. Step 3: Cross multiply
    730,972.20x = 1,095,000.30 × 643,297.80
  4. Step 4: Simplify right side
    730,972.20x = 704,411,283,989.34
  5. Step 5: Solve for x
    x = 704,411,283,989.34/730,972.20
  6. Step 6: Final answer
    x = 963,663.58

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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.