Home / 780,387.75-1,077,022.71-440,877.87

Finding the Fourth Proportional to 780,387.75, 1,077,022.71 and 440,877.87

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Solution

The fourth proportional to 780,387.75, 1,077,022.71 and 440,877.87 is: 608,460.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,387.75 : 1,077,022.71 = 440,877.87 : x
  2. Step 2: Convert to fraction form
    780,387.75/1,077,022.71 = 440,877.87/x
  3. Step 3: Cross multiply
    780,387.75x = 1,077,022.71 × 440,877.87
  4. Step 4: Simplify right side
    780,387.75x = 474,835,478,326.43
  5. Step 5: Solve for x
    x = 474,835,478,326.43/780,387.75
  6. Step 6: Final answer
    x = 608,460.96

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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.