Home / 513,074.42-708,043.66-286,719.92

Finding the Fourth Proportional to 513,074.42, 708,043.66 and 286,719.92

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Solution

The fourth proportional to 513,074.42, 708,043.66 and 286,719.92 is: 395,674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,074.42 : 708,043.66 = 286,719.92 : x
  2. Step 2: Convert to fraction form
    513,074.42/708,043.66 = 286,719.92/x
  3. Step 3: Cross multiply
    513,074.42x = 708,043.66 × 286,719.92
  4. Step 4: Simplify right side
    513,074.42x = 203,010,221,551.71
  5. Step 5: Solve for x
    x = 203,010,221,551.71/513,074.42
  6. Step 6: Final answer
    x = 395,674.03

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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.