Home / 878,571.40-1,316,982.30-404,429.80

Finding the Fourth Proportional to 878,571.40, 1,316,982.30 and 404,429.80

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Solution

The fourth proportional to 878,571.40, 1,316,982.30 and 404,429.80 is: 606,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,571.40 : 1,316,982.30 = 404,429.80 : x
  2. Step 2: Convert to fraction form
    878,571.40/1,316,982.30 = 404,429.80/x
  3. Step 3: Cross multiply
    878,571.40x = 1,316,982.30 × 404,429.80
  4. Step 4: Simplify right side
    878,571.40x = 532,626,888,192.54
  5. Step 5: Solve for x
    x = 532,626,888,192.54/878,571.40
  6. Step 6: Final answer
    x = 606,242.01

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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.