Home / 872,769.60-1,309,845.60-340,545.60

Finding the Fourth Proportional to 872,769.60, 1,309,845.60 and 340,545.60

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Solution

The fourth proportional to 872,769.60, 1,309,845.60 and 340,545.60 is: 511,088.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,769.60 : 1,309,845.60 = 340,545.60 : x
  2. Step 2: Convert to fraction form
    872,769.60/1,309,845.60 = 340,545.60/x
  3. Step 3: Cross multiply
    872,769.60x = 1,309,845.60 × 340,545.60
  4. Step 4: Simplify right side
    872,769.60x = 446,062,155,759.36
  5. Step 5: Solve for x
    x = 446,062,155,759.36/872,769.60
  6. Step 6: Final answer
    x = 511,088.10

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1.5x scale

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.