Home / 989,472.80-1,365,475.08-536,763.80

Finding the Fourth Proportional to 989,472.80, 1,365,475.08 and 536,763.80

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Solution

The fourth proportional to 989,472.80, 1,365,475.08 and 536,763.80 is: 740,735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,472.80 : 1,365,475.08 = 536,763.80 : x
  2. Step 2: Convert to fraction form
    989,472.80/1,365,475.08 = 536,763.80/x
  3. Step 3: Cross multiply
    989,472.80x = 1,365,475.08 × 536,763.80
  4. Step 4: Simplify right side
    989,472.80x = 732,937,598,172.66
  5. Step 5: Solve for x
    x = 732,937,598,172.66/989,472.80
  6. Step 6: Final answer
    x = 740,735.47

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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.