Home / 989,207.70-1,365,108.21-536,499.06

Finding the Fourth Proportional to 989,207.70, 1,365,108.21 and 536,499.06

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Solution

The fourth proportional to 989,207.70, 1,365,108.21 and 536,499.06 is: 740,369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,207.70 : 1,365,108.21 = 536,499.06 : x
  2. Step 2: Convert to fraction form
    989,207.70/1,365,108.21 = 536,499.06/x
  3. Step 3: Cross multiply
    989,207.70x = 1,365,108.21 × 536,499.06
  4. Step 4: Simplify right side
    989,207.70x = 732,379,271,463.28
  5. Step 5: Solve for x
    x = 732,379,271,463.28/989,207.70
  6. Step 6: Final answer
    x = 740,369.56

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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.