Home / 317,789.79-476,685.46-77,904.74

Finding the Fourth Proportional to 317,789.79, 476,685.46 and 77,904.74

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Solution

The fourth proportional to 317,789.79, 476,685.46 and 77,904.74 is: 116,857.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,789.79 : 476,685.46 = 77,904.74 : x
  2. Step 2: Convert to fraction form
    317,789.79/476,685.46 = 77,904.74/x
  3. Step 3: Cross multiply
    317,789.79x = 476,685.46 × 77,904.74
  4. Step 4: Simplify right side
    317,789.79x = 37,136,058,112.18
  5. Step 5: Solve for x
    x = 37,136,058,112.18/317,789.79
  6. Step 6: Final answer
    x = 116,857.31

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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.