Home / 762,689.32-1,143,585.36-289,407.96

Finding the Fourth Proportional to 762,689.32, 1,143,585.36 and 289,407.96

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Solution

The fourth proportional to 762,689.32, 1,143,585.36 and 289,407.96 is: 433,941.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,689.32 : 1,143,585.36 = 289,407.96 : x
  2. Step 2: Convert to fraction form
    762,689.32/1,143,585.36 = 289,407.96/x
  3. Step 3: Cross multiply
    762,689.32x = 1,143,585.36 × 289,407.96
  4. Step 4: Simplify right side
    762,689.32x = 330,962,706,123.47
  5. Step 5: Solve for x
    x = 330,962,706,123.47/762,689.32
  6. Step 6: Final answer
    x = 433,941.71

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1.5x scale

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.