Home / 800,783.16-1,105,080.87-438,207.10

Finding the Fourth Proportional to 800,783.16, 1,105,080.87 and 438,207.10

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Solution

The fourth proportional to 800,783.16, 1,105,080.87 and 438,207.10 is: 604,725.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,783.16 : 1,105,080.87 = 438,207.10 : x
  2. Step 2: Convert to fraction form
    800,783.16/1,105,080.87 = 438,207.10/x
  3. Step 3: Cross multiply
    800,783.16x = 1,105,080.87 × 438,207.10
  4. Step 4: Simplify right side
    800,783.16x = 484,254,280,545.48
  5. Step 5: Solve for x
    x = 484,254,280,545.48/800,783.16
  6. Step 6: Final answer
    x = 604,725.85

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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.