Home / 1,008,043.85-1,512,065.78-931,061.45

Finding the Fourth Proportional to 1,008,043.85, 1,512,065.78 and 931,061.45

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Solution

The fourth proportional to 1,008,043.85, 1,512,065.78 and 931,061.45 is: 1,396,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,043.85 : 1,512,065.78 = 931,061.45 : x
  2. Step 2: Convert to fraction form
    1,008,043.85/1,512,065.78 = 931,061.45/x
  3. Step 3: Cross multiply
    1,008,043.85x = 1,512,065.78 × 931,061.45
  4. Step 4: Simplify right side
    1,008,043.85x = 1,407,826,152,966.87
  5. Step 5: Solve for x
    x = 1,407,826,152,966.87/1,008,043.85
  6. Step 6: Final answer
    x = 1,396,592.18

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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.