Home / 875,047.40-1,309,946.70-519,878.60

Finding the Fourth Proportional to 875,047.40, 1,309,946.70 and 519,878.60

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Solution

The fourth proportional to 875,047.40, 1,309,946.70 and 519,878.60 is: 778,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,047.40 : 1,309,946.70 = 519,878.60 : x
  2. Step 2: Convert to fraction form
    875,047.40/1,309,946.70 = 519,878.60/x
  3. Step 3: Cross multiply
    875,047.40x = 1,309,946.70 × 519,878.60
  4. Step 4: Simplify right side
    875,047.40x = 681,013,256,470.62
  5. Step 5: Solve for x
    x = 681,013,256,470.62/875,047.40
  6. Step 6: Final answer
    x = 778,258.71

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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.