Home / 901,681.28-1,244,304.96-499,264.64

Finding the Fourth Proportional to 901,681.28, 1,244,304.96 and 499,264.64

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Solution

The fourth proportional to 901,681.28, 1,244,304.96 and 499,264.64 is: 688,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,681.28 : 1,244,304.96 = 499,264.64 : x
  2. Step 2: Convert to fraction form
    901,681.28/1,244,304.96 = 499,264.64/x
  3. Step 3: Cross multiply
    901,681.28x = 1,244,304.96 × 499,264.64
  4. Step 4: Simplify right side
    901,681.28x = 621,237,467,904.61
  5. Step 5: Solve for x
    x = 621,237,467,904.61/901,681.28
  6. Step 6: Final answer
    x = 688,976.78

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1.5x scale

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.