Home / 1,065,086.46-1,598,423.15-781,509.78

Finding the Fourth Proportional to 1,065,086.46, 1,598,423.15 and 781,509.78

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Solution

The fourth proportional to 1,065,086.46, 1,598,423.15 and 781,509.78 is: 1,172,846.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,086.46 : 1,598,423.15 = 781,509.78 : x
  2. Step 2: Convert to fraction form
    1,065,086.46/1,598,423.15 = 781,509.78/x
  3. Step 3: Cross multiply
    1,065,086.46x = 1,598,423.15 × 781,509.78
  4. Step 4: Simplify right side
    1,065,086.46x = 1,249,183,324,303.41
  5. Step 5: Solve for x
    x = 1,249,183,324,303.41/1,065,086.46
  6. Step 6: Final answer
    x = 1,172,846.87

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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.