Home / 1,313,584.38-1,970,988.93-1,292,355.90

Finding the Fourth Proportional to 1,313,584.38, 1,970,988.93 and 1,292,355.90

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Solution

The fourth proportional to 1,313,584.38, 1,970,988.93 and 1,292,355.90 is: 1,939,136.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,584.38 : 1,970,988.93 = 1,292,355.90 : x
  2. Step 2: Convert to fraction form
    1,313,584.38/1,970,988.93 = 1,292,355.90/x
  3. Step 3: Cross multiply
    1,313,584.38x = 1,970,988.93 × 1,292,355.90
  4. Step 4: Simplify right side
    1,313,584.38x = 2,547,219,172,520.19
  5. Step 5: Solve for x
    x = 2,547,219,172,520.19/1,313,584.38
  6. Step 6: Final answer
    x = 1,939,136.31

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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.