Home / 1,239,549.54-1,710,663.09-688,293.72

Finding the Fourth Proportional to 1,239,549.54, 1,710,663.09 and 688,293.72

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Solution

The fourth proportional to 1,239,549.54, 1,710,663.09 and 688,293.72 is: 949,892.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,549.54 : 1,710,663.09 = 688,293.72 : x
  2. Step 2: Convert to fraction form
    1,239,549.54/1,710,663.09 = 688,293.72/x
  3. Step 3: Cross multiply
    1,239,549.54x = 1,710,663.09 × 688,293.72
  4. Step 4: Simplify right side
    1,239,549.54x = 1,177,438,661,882.80
  5. Step 5: Solve for x
    x = 1,177,438,661,882.80/1,239,549.54
  6. Step 6: Final answer
    x = 949,892.38

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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.