Home / 949,870.76-1,310,782.29-520,143.49

Finding the Fourth Proportional to 949,870.76, 1,310,782.29 and 520,143.49

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Solution

The fourth proportional to 949,870.76, 1,310,782.29 and 520,143.49 is: 717,776.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,870.76 : 1,310,782.29 = 520,143.49 : x
  2. Step 2: Convert to fraction form
    949,870.76/1,310,782.29 = 520,143.49/x
  3. Step 3: Cross multiply
    949,870.76x = 1,310,782.29 × 520,143.49
  4. Step 4: Simplify right side
    949,870.76x = 681,794,869,723.30
  5. Step 5: Solve for x
    x = 681,794,869,723.30/949,870.76
  6. Step 6: Final answer
    x = 717,776.46

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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.