Home / 875,301.60-1,313,470.80-638,047.20

Finding the Fourth Proportional to 875,301.60, 1,313,470.80 and 638,047.20

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Solution

The fourth proportional to 875,301.60, 1,313,470.80 and 638,047.20 is: 957,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,301.60 : 1,313,470.80 = 638,047.20 : x
  2. Step 2: Convert to fraction form
    875,301.60/1,313,470.80 = 638,047.20/x
  3. Step 3: Cross multiply
    875,301.60x = 1,313,470.80 × 638,047.20
  4. Step 4: Simplify right side
    875,301.60x = 838,056,366,221.76
  5. Step 5: Solve for x
    x = 838,056,366,221.76/875,301.60
  6. Step 6: Final answer
    x = 957,448.69

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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.