Home / 762,359.40-1,143,644.58-257,065.02

Finding the Fourth Proportional to 762,359.40, 1,143,644.58 and 257,065.02

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Solution

The fourth proportional to 762,359.40, 1,143,644.58 and 257,065.02 is: 385,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,359.40 : 1,143,644.58 = 257,065.02 : x
  2. Step 2: Convert to fraction form
    762,359.40/1,143,644.58 = 257,065.02/x
  3. Step 3: Cross multiply
    762,359.40x = 1,143,644.58 × 257,065.02
  4. Step 4: Simplify right side
    762,359.40x = 293,991,016,830.59
  5. Step 5: Solve for x
    x = 293,991,016,830.59/762,359.40
  6. Step 6: Final answer
    x = 385,633.10

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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.