Home / 748,711.68-1,033,219.62-409,179.84

Finding the Fourth Proportional to 748,711.68, 1,033,219.62 and 409,179.84

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Solution

The fourth proportional to 748,711.68, 1,033,219.62 and 409,179.84 is: 564,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,711.68 : 1,033,219.62 = 409,179.84 : x
  2. Step 2: Convert to fraction form
    748,711.68/1,033,219.62 = 409,179.84/x
  3. Step 3: Cross multiply
    748,711.68x = 1,033,219.62 × 409,179.84
  4. Step 4: Simplify right side
    748,711.68x = 422,772,638,796.46
  5. Step 5: Solve for x
    x = 422,772,638,796.46/748,711.68
  6. Step 6: Final answer
    x = 564,666.81

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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.