Home / 782,970.64-1,173,616.36-512,996.80

Finding the Fourth Proportional to 782,970.64, 1,173,616.36 and 512,996.80

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Solution

The fourth proportional to 782,970.64, 1,173,616.36 and 512,996.80 is: 768,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,970.64 : 1,173,616.36 = 512,996.80 : x
  2. Step 2: Convert to fraction form
    782,970.64/1,173,616.36 = 512,996.80/x
  3. Step 3: Cross multiply
    782,970.64x = 1,173,616.36 × 512,996.80
  4. Step 4: Simplify right side
    782,970.64x = 602,061,437,107.65
  5. Step 5: Solve for x
    x = 602,061,437,107.65/782,970.64
  6. Step 6: Final answer
    x = 768,945.10

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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.