Home / 725,291.80-1,000,485.70-452,886.76

Finding the Fourth Proportional to 725,291.80, 1,000,485.70 and 452,886.76

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Solution

The fourth proportional to 725,291.80, 1,000,485.70 and 452,886.76 is: 624,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,291.80 : 1,000,485.70 = 452,886.76 : x
  2. Step 2: Convert to fraction form
    725,291.80/1,000,485.70 = 452,886.76/x
  3. Step 3: Cross multiply
    725,291.80x = 1,000,485.70 × 452,886.76
  4. Step 4: Simplify right side
    725,291.80x = 453,106,727,099.33
  5. Step 5: Solve for x
    x = 453,106,727,099.33/725,291.80
  6. Step 6: Final answer
    x = 624,723.36

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Double scale
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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.