Home / 915,000.11-1,364,319.80-889,861.16

Finding the Fourth Proportional to 915,000.11, 1,364,319.80 and 889,861.16

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Solution

The fourth proportional to 915,000.11, 1,364,319.80 and 889,861.16 is: 1,326,836.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,000.11 : 1,364,319.80 = 889,861.16 : x
  2. Step 2: Convert to fraction form
    915,000.11/1,364,319.80 = 889,861.16/x
  3. Step 3: Cross multiply
    915,000.11x = 1,364,319.80 × 889,861.16
  4. Step 4: Simplify right side
    915,000.11x = 1,214,055,188,568.06
  5. Step 5: Solve for x
    x = 1,214,055,188,568.06/915,000.11
  6. Step 6: Final answer
    x = 1,326,836.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.