Home / 516,278.04-712,438.68-286,849.80

Finding the Fourth Proportional to 516,278.04, 712,438.68 and 286,849.80

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Solution

The fourth proportional to 516,278.04, 712,438.68 and 286,849.80 is: 395,838.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,278.04 : 712,438.68 = 286,849.80 : x
  2. Step 2: Convert to fraction form
    516,278.04/712,438.68 = 286,849.80/x
  3. Step 3: Cross multiply
    516,278.04x = 712,438.68 × 286,849.80
  4. Step 4: Simplify right side
    516,278.04x = 204,362,892,870.26
  5. Step 5: Solve for x
    x = 204,362,892,870.26/516,278.04
  6. Step 6: Final answer
    x = 395,838.83

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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.