Home / 868,109.40-1,301,726.70-513,232.20

Finding the Fourth Proportional to 868,109.40, 1,301,726.70 and 513,232.20

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Solution

The fourth proportional to 868,109.40, 1,301,726.70 and 513,232.20 is: 769,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,109.40 : 1,301,726.70 = 513,232.20 : x
  2. Step 2: Convert to fraction form
    868,109.40/1,301,726.70 = 513,232.20/x
  3. Step 3: Cross multiply
    868,109.40x = 1,301,726.70 × 513,232.20
  4. Step 4: Simplify right side
    868,109.40x = 668,088,058,039.74
  5. Step 5: Solve for x
    x = 668,088,058,039.74/868,109.40
  6. Step 6: Final answer
    x = 769,589.71

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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.