Home / 589,002.57-812,857.68-443,547.90

Finding the Fourth Proportional to 589,002.57, 812,857.68 and 443,547.90

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Solution

The fourth proportional to 589,002.57, 812,857.68 and 443,547.90 is: 612,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,002.57 : 812,857.68 = 443,547.90 : x
  2. Step 2: Convert to fraction form
    589,002.57/812,857.68 = 443,547.90/x
  3. Step 3: Cross multiply
    589,002.57x = 812,857.68 × 443,547.90
  4. Step 4: Simplify right side
    589,002.57x = 360,541,316,962.87
  5. Step 5: Solve for x
    x = 360,541,316,962.87/589,002.57
  6. Step 6: Final answer
    x = 612,121.81

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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.