Home / 942,168.40-1,412,815.20-409,415.20

Finding the Fourth Proportional to 942,168.40, 1,412,815.20 and 409,415.20

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Solution

The fourth proportional to 942,168.40, 1,412,815.20 and 409,415.20 is: 613,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,168.40 : 1,412,815.20 = 409,415.20 : x
  2. Step 2: Convert to fraction form
    942,168.40/1,412,815.20 = 409,415.20/x
  3. Step 3: Cross multiply
    942,168.40x = 1,412,815.20 × 409,415.20
  4. Step 4: Simplify right side
    942,168.40x = 578,428,017,671.04
  5. Step 5: Solve for x
    x = 578,428,017,671.04/942,168.40
  6. Step 6: Final answer
    x = 613,932.73

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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.