Home / 686,593.31-1,030,482.88-476,378.87

Finding the Fourth Proportional to 686,593.31, 1,030,482.88 and 476,378.87

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Solution

The fourth proportional to 686,593.31, 1,030,482.88 and 476,378.87 is: 714,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,593.31 : 1,030,482.88 = 476,378.87 : x
  2. Step 2: Convert to fraction form
    686,593.31/1,030,482.88 = 476,378.87/x
  3. Step 3: Cross multiply
    686,593.31x = 1,030,482.88 × 476,378.87
  4. Step 4: Simplify right side
    686,593.31x = 490,900,263,585.38
  5. Step 5: Solve for x
    x = 490,900,263,585.38/686,593.31
  6. Step 6: Final answer
    x = 714,979.68

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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.