Home / 762,790.70-1,143,840.45-289,318.70

Finding the Fourth Proportional to 762,790.70, 1,143,840.45 and 289,318.70

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Solution

The fourth proportional to 762,790.70, 1,143,840.45 and 289,318.70 is: 433,846.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,790.70 : 1,143,840.45 = 289,318.70 : x
  2. Step 2: Convert to fraction form
    762,790.70/1,143,840.45 = 289,318.70/x
  3. Step 3: Cross multiply
    762,790.70x = 1,143,840.45 × 289,318.70
  4. Step 4: Simplify right side
    762,790.70x = 330,934,432,001.42
  5. Step 5: Solve for x
    x = 330,934,432,001.42/762,790.70
  6. Step 6: Final answer
    x = 433,846.97

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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.