Home / 725,184.89-1,000,696.49-419,280.90

Finding the Fourth Proportional to 725,184.89, 1,000,696.49 and 419,280.90

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Solution

The fourth proportional to 725,184.89, 1,000,696.49 and 419,280.90 is: 578,573.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,184.89 : 1,000,696.49 = 419,280.90 : x
  2. Step 2: Convert to fraction form
    725,184.89/1,000,696.49 = 419,280.90/x
  3. Step 3: Cross multiply
    725,184.89x = 1,000,696.49 × 419,280.90
  4. Step 4: Simplify right side
    725,184.89x = 419,572,922,857.64
  5. Step 5: Solve for x
    x = 419,572,922,857.64/725,184.89
  6. Step 6: Final answer
    x = 578,573.72

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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.