Home / 872,882.97-1,204,566.89-490,909.74

Finding the Fourth Proportional to 872,882.97, 1,204,566.89 and 490,909.74

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Solution

The fourth proportional to 872,882.97, 1,204,566.89 and 490,909.74 is: 677,448.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,882.97 : 1,204,566.89 = 490,909.74 : x
  2. Step 2: Convert to fraction form
    872,882.97/1,204,566.89 = 490,909.74/x
  3. Step 3: Cross multiply
    872,882.97x = 1,204,566.89 × 490,909.74
  4. Step 4: Simplify right side
    872,882.97x = 591,333,618,782.51
  5. Step 5: Solve for x
    x = 591,333,618,782.51/872,882.97
  6. Step 6: Final answer
    x = 677,448.91

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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.