Home / 1,120,319.80-1,545,764.74-661,445.08

Finding the Fourth Proportional to 1,120,319.80, 1,545,764.74 and 661,445.08

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Solution

The fourth proportional to 1,120,319.80, 1,545,764.74 and 661,445.08 is: 912,630.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,319.80 : 1,545,764.74 = 661,445.08 : x
  2. Step 2: Convert to fraction form
    1,120,319.80/1,545,764.74 = 661,445.08/x
  3. Step 3: Cross multiply
    1,120,319.80x = 1,545,764.74 × 661,445.08
  4. Step 4: Simplify right side
    1,120,319.80x = 1,022,438,482,110.48
  5. Step 5: Solve for x
    x = 1,022,438,482,110.48/1,120,319.80
  6. Step 6: Final answer
    x = 912,630.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.