Home / 1,109,275.29-1,664,096.87-389,430.15

Finding the Fourth Proportional to 1,109,275.29, 1,664,096.87 and 389,430.15

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Solution

The fourth proportional to 1,109,275.29, 1,664,096.87 and 389,430.15 is: 584,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,275.29 : 1,664,096.87 = 389,430.15 : x
  2. Step 2: Convert to fraction form
    1,109,275.29/1,664,096.87 = 389,430.15/x
  3. Step 3: Cross multiply
    1,109,275.29x = 1,664,096.87 × 389,430.15
  4. Step 4: Simplify right side
    1,109,275.29x = 648,049,493,698.63
  5. Step 5: Solve for x
    x = 648,049,493,698.63/1,109,275.29
  6. Step 6: Final answer
    x = 584,209.80

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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.