Home / 690,799.31-1,035,698.68-291,220.74

Finding the Fourth Proportional to 690,799.31, 1,035,698.68 and 291,220.74

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Solution

The fourth proportional to 690,799.31, 1,035,698.68 and 291,220.74 is: 436,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,799.31 : 1,035,698.68 = 291,220.74 : x
  2. Step 2: Convert to fraction form
    690,799.31/1,035,698.68 = 291,220.74/x
  3. Step 3: Cross multiply
    690,799.31x = 1,035,698.68 × 291,220.74
  4. Step 4: Simplify right side
    690,799.31x = 301,616,936,006.62
  5. Step 5: Solve for x
    x = 301,616,936,006.62/690,799.31
  6. Step 6: Final answer
    x = 436,620.20

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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.