Home / 513,589.28-769,752.95-288,476.51

Finding the Fourth Proportional to 513,589.28, 769,752.95 and 288,476.51

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Solution

The fourth proportional to 513,589.28, 769,752.95 and 288,476.51 is: 432,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,589.28 : 769,752.95 = 288,476.51 : x
  2. Step 2: Convert to fraction form
    513,589.28/769,752.95 = 288,476.51/x
  3. Step 3: Cross multiply
    513,589.28x = 769,752.95 × 288,476.51
  4. Step 4: Simplify right side
    513,589.28x = 222,055,639,287.06
  5. Step 5: Solve for x
    x = 222,055,639,287.06/513,589.28
  6. Step 6: Final answer
    x = 432,360.35

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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.