Home / 513,028.16-707,965.28-286,675.52

Finding the Fourth Proportional to 513,028.16, 707,965.28 and 286,675.52

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Solution

The fourth proportional to 513,028.16, 707,965.28 and 286,675.52 is: 395,604.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,028.16 : 707,965.28 = 286,675.52 : x
  2. Step 2: Convert to fraction form
    513,028.16/707,965.28 = 286,675.52/x
  3. Step 3: Cross multiply
    513,028.16x = 707,965.28 × 286,675.52
  4. Step 4: Simplify right side
    513,028.16x = 202,956,314,785.95
  5. Step 5: Solve for x
    x = 202,956,314,785.95/513,028.16
  6. Step 6: Final answer
    x = 395,604.63

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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.