Home / 872,423.15-1,308,635.02-273,430.78

Finding the Fourth Proportional to 872,423.15, 1,308,635.02 and 273,430.78

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Solution

The fourth proportional to 872,423.15, 1,308,635.02 and 273,430.78 is: 410,146.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,423.15 : 1,308,635.02 = 273,430.78 : x
  2. Step 2: Convert to fraction form
    872,423.15/1,308,635.02 = 273,430.78/x
  3. Step 3: Cross multiply
    872,423.15x = 1,308,635.02 × 273,430.78
  4. Step 4: Simplify right side
    872,423.15x = 357,821,091,324.12
  5. Step 5: Solve for x
    x = 357,821,091,324.12/872,423.15
  6. Step 6: Final answer
    x = 410,146.26

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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.