Home / 942,165.90-1,412,811.45-409,412.70

Finding the Fourth Proportional to 942,165.90, 1,412,811.45 and 409,412.70

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Solution

The fourth proportional to 942,165.90, 1,412,811.45 and 409,412.70 is: 613,928.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,165.90 : 1,412,811.45 = 409,412.70 : x
  2. Step 2: Convert to fraction form
    942,165.90/1,412,811.45 = 409,412.70/x
  3. Step 3: Cross multiply
    942,165.90x = 1,412,811.45 × 409,412.70
  4. Step 4: Simplify right side
    942,165.90x = 578,422,950,335.42
  5. Step 5: Solve for x
    x = 578,422,950,335.42/942,165.90
  6. Step 6: Final answer
    x = 613,928.98

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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.