Home / 754,834.32-1,040,544.36-499,742.64

Finding the Fourth Proportional to 754,834.32, 1,040,544.36 and 499,742.64

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Solution

The fourth proportional to 754,834.32, 1,040,544.36 and 499,742.64 is: 688,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,834.32 : 1,040,544.36 = 499,742.64 : x
  2. Step 2: Convert to fraction form
    754,834.32/1,040,544.36 = 499,742.64/x
  3. Step 3: Cross multiply
    754,834.32x = 1,040,544.36 × 499,742.64
  4. Step 4: Simplify right side
    754,834.32x = 520,004,385,503.51
  5. Step 5: Solve for x
    x = 520,004,385,503.51/754,834.32
  6. Step 6: Final answer
    x = 688,898.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.