Home / 989,479.64-1,365,484.53-536,770.64

Finding the Fourth Proportional to 989,479.64, 1,365,484.53 and 536,770.64

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Solution

The fourth proportional to 989,479.64, 1,365,484.53 and 536,770.64 is: 740,744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,479.64 : 1,365,484.53 = 536,770.64 : x
  2. Step 2: Convert to fraction form
    989,479.64/1,365,484.53 = 536,770.64/x
  3. Step 3: Cross multiply
    989,479.64x = 1,365,484.53 × 536,770.64
  4. Step 4: Simplify right side
    989,479.64x = 732,951,998,250.78
  5. Step 5: Solve for x
    x = 732,951,998,250.78/989,479.64
  6. Step 6: Final answer
    x = 740,744.91

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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.