Home / 781,011.08-1,170,179.10-426,274.04

Finding the Fourth Proportional to 781,011.08, 1,170,179.10 and 426,274.04

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Solution

The fourth proportional to 781,011.08, 1,170,179.10 and 426,274.04 is: 638,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,011.08 : 1,170,179.10 = 426,274.04 : x
  2. Step 2: Convert to fraction form
    781,011.08/1,170,179.10 = 426,274.04/x
  3. Step 3: Cross multiply
    781,011.08x = 1,170,179.10 × 426,274.04
  4. Step 4: Simplify right side
    781,011.08x = 498,816,972,480.56
  5. Step 5: Solve for x
    x = 498,816,972,480.56/781,011.08
  6. Step 6: Final answer
    x = 638,681.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.