Home / 1,078,230.48-1,487,012.76-863,292.12

Finding the Fourth Proportional to 1,078,230.48, 1,487,012.76 and 863,292.12

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Solution

The fourth proportional to 1,078,230.48, 1,487,012.76 and 863,292.12 is: 1,190,586.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,230.48 : 1,487,012.76 = 863,292.12 : x
  2. Step 2: Convert to fraction form
    1,078,230.48/1,487,012.76 = 863,292.12/x
  3. Step 3: Cross multiply
    1,078,230.48x = 1,487,012.76 × 863,292.12
  4. Step 4: Simplify right side
    1,078,230.48x = 1,283,726,398,047.45
  5. Step 5: Solve for x
    x = 1,283,726,398,047.45/1,078,230.48
  6. Step 6: Final answer
    x = 1,190,586.26

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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.