Home / 712,248.81-1,068,375.74-172,505.45

Finding the Fourth Proportional to 712,248.81, 1,068,375.74 and 172,505.45

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Solution

The fourth proportional to 712,248.81, 1,068,375.74 and 172,505.45 is: 258,758.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,248.81 : 1,068,375.74 = 172,505.45 : x
  2. Step 2: Convert to fraction form
    712,248.81/1,068,375.74 = 172,505.45/x
  3. Step 3: Cross multiply
    712,248.81x = 1,068,375.74 × 172,505.45
  4. Step 4: Simplify right side
    712,248.81x = 184,300,635,529.36
  5. Step 5: Solve for x
    x = 184,300,635,529.36/712,248.81
  6. Step 6: Final answer
    x = 258,758.78

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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.