Home / 872,432.19-1,308,857.04-422,627.25

Finding the Fourth Proportional to 872,432.19, 1,308,857.04 and 422,627.25

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Solution

The fourth proportional to 872,432.19, 1,308,857.04 and 422,627.25 is: 634,042.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,432.19 : 1,308,857.04 = 422,627.25 : x
  2. Step 2: Convert to fraction form
    872,432.19/1,308,857.04 = 422,627.25/x
  3. Step 3: Cross multiply
    872,432.19x = 1,308,857.04 × 422,627.25
  4. Step 4: Simplify right side
    872,432.19x = 553,158,651,458.34
  5. Step 5: Solve for x
    x = 553,158,651,458.34/872,432.19
  6. Step 6: Final answer
    x = 634,042.00

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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.