Home / 1,438,129.72-1,984,616.68-793,549.40

Finding the Fourth Proportional to 1,438,129.72, 1,984,616.68 and 793,549.40

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Solution

The fourth proportional to 1,438,129.72, 1,984,616.68 and 793,549.40 is: 1,095,096.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,129.72 : 1,984,616.68 = 793,549.40 : x
  2. Step 2: Convert to fraction form
    1,438,129.72/1,984,616.68 = 793,549.40/x
  3. Step 3: Cross multiply
    1,438,129.72x = 1,984,616.68 × 793,549.40
  4. Step 4: Simplify right side
    1,438,129.72x = 1,574,891,375,643.99
  5. Step 5: Solve for x
    x = 1,574,891,375,643.99/1,438,129.72
  6. Step 6: Final answer
    x = 1,095,096.88

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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.