Home / 725,867.70-1,088,801.55-525,246.90

Finding the Fourth Proportional to 725,867.70, 1,088,801.55 and 525,246.90

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Solution

The fourth proportional to 725,867.70, 1,088,801.55 and 525,246.90 is: 787,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,867.70 : 1,088,801.55 = 525,246.90 : x
  2. Step 2: Convert to fraction form
    725,867.70/1,088,801.55 = 525,246.90/x
  3. Step 3: Cross multiply
    725,867.70x = 1,088,801.55 × 525,246.90
  4. Step 4: Simplify right side
    725,867.70x = 571,889,638,852.70
  5. Step 5: Solve for x
    x = 571,889,638,852.70/725,867.70
  6. Step 6: Final answer
    x = 787,870.35

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Double scale
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Similar ratio
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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.