Home / 778,410.20-1,167,528.43-209,847.92

Finding the Fourth Proportional to 778,410.20, 1,167,528.43 and 209,847.92

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Solution

The fourth proportional to 778,410.20, 1,167,528.43 and 209,847.92 is: 314,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,410.20 : 1,167,528.43 = 209,847.92 : x
  2. Step 2: Convert to fraction form
    778,410.20/1,167,528.43 = 209,847.92/x
  3. Step 3: Cross multiply
    778,410.20x = 1,167,528.43 × 209,847.92
  4. Step 4: Simplify right side
    778,410.20x = 245,003,407,001.03
  5. Step 5: Solve for x
    x = 245,003,407,001.03/778,410.20
  6. Step 6: Final answer
    x = 314,748.45

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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.