Home / 689,080.50-1,032,568.26-289,502.82

Finding the Fourth Proportional to 689,080.50, 1,032,568.26 and 289,502.82

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Solution

The fourth proportional to 689,080.50, 1,032,568.26 and 289,502.82 is: 433,812.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,080.50 : 1,032,568.26 = 289,502.82 : x
  2. Step 2: Convert to fraction form
    689,080.50/1,032,568.26 = 289,502.82/x
  3. Step 3: Cross multiply
    689,080.50x = 1,032,568.26 × 289,502.82
  4. Step 4: Simplify right side
    689,080.50x = 298,931,423,112.49
  5. Step 5: Solve for x
    x = 298,931,423,112.49/689,080.50
  6. Step 6: Final answer
    x = 433,812.05

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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.