Home / 1,339,940.80-2,009,911.20-773,070.40

Finding the Fourth Proportional to 1,339,940.80, 2,009,911.20 and 773,070.40

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Solution

The fourth proportional to 1,339,940.80, 2,009,911.20 and 773,070.40 is: 1,159,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,940.80 : 2,009,911.20 = 773,070.40 : x
  2. Step 2: Convert to fraction form
    1,339,940.80/2,009,911.20 = 773,070.40/x
  3. Step 3: Cross multiply
    1,339,940.80x = 2,009,911.20 × 773,070.40
  4. Step 4: Simplify right side
    1,339,940.80x = 1,553,802,855,348.48
  5. Step 5: Solve for x
    x = 1,553,802,855,348.48/1,339,940.80
  6. Step 6: Final answer
    x = 1,159,605.60

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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.