Home / 1,152,168.48-1,589,549.04-721,699.20

Finding the Fourth Proportional to 1,152,168.48, 1,589,549.04 and 721,699.20

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Solution

The fourth proportional to 1,152,168.48, 1,589,549.04 and 721,699.20 is: 995,667.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,168.48 : 1,589,549.04 = 721,699.20 : x
  2. Step 2: Convert to fraction form
    1,152,168.48/1,589,549.04 = 721,699.20/x
  3. Step 3: Cross multiply
    1,152,168.48x = 1,589,549.04 × 721,699.20
  4. Step 4: Simplify right side
    1,152,168.48x = 1,147,176,270,528.77
  5. Step 5: Solve for x
    x = 1,147,176,270,528.77/1,152,168.48
  6. Step 6: Final answer
    x = 995,667.12

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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.