Home / 780,445.80-1,077,008.67-548,199.09

Finding the Fourth Proportional to 780,445.80, 1,077,008.67 and 548,199.09

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Solution

The fourth proportional to 780,445.80, 1,077,008.67 and 548,199.09 is: 756,510.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,445.80 : 1,077,008.67 = 548,199.09 : x
  2. Step 2: Convert to fraction form
    780,445.80/1,077,008.67 = 548,199.09/x
  3. Step 3: Cross multiply
    780,445.80x = 1,077,008.67 × 548,199.09
  4. Step 4: Simplify right side
    780,445.80x = 590,415,172,816.11
  5. Step 5: Solve for x
    x = 590,415,172,816.11/780,445.80
  6. Step 6: Final answer
    x = 756,510.15

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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.