Home / 725,184.39-1,000,695.80-419,280.40

Finding the Fourth Proportional to 725,184.39, 1,000,695.80 and 419,280.40

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Solution

The fourth proportional to 725,184.39, 1,000,695.80 and 419,280.40 is: 578,573.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,184.39 : 1,000,695.80 = 419,280.40 : x
  2. Step 2: Convert to fraction form
    725,184.39/1,000,695.80 = 419,280.40/x
  3. Step 3: Cross multiply
    725,184.39x = 1,000,695.80 × 419,280.40
  4. Step 4: Simplify right side
    725,184.39x = 419,572,133,205.92
  5. Step 5: Solve for x
    x = 419,572,133,205.92/725,184.39
  6. Step 6: Final answer
    x = 578,573.03

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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.