Home / 712,505.12-1,068,047.60-356,432.16

Finding the Fourth Proportional to 712,505.12, 1,068,047.60 and 356,432.16

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Solution

The fourth proportional to 712,505.12, 1,068,047.60 and 356,432.16 is: 534,293.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,505.12 : 1,068,047.60 = 356,432.16 : x
  2. Step 2: Convert to fraction form
    712,505.12/1,068,047.60 = 356,432.16/x
  3. Step 3: Cross multiply
    712,505.12x = 1,068,047.60 × 356,432.16
  4. Step 4: Simplify right side
    712,505.12x = 380,686,513,050.82
  5. Step 5: Solve for x
    x = 380,686,513,050.82/712,505.12
  6. Step 6: Final answer
    x = 534,293.02

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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.