Home / 1,276,750.25-1,761,356.95-840,605.04

Finding the Fourth Proportional to 1,276,750.25, 1,761,356.95 and 840,605.04

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Solution

The fourth proportional to 1,276,750.25, 1,761,356.95 and 840,605.04 is: 1,159,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,750.25 : 1,761,356.95 = 840,605.04 : x
  2. Step 2: Convert to fraction form
    1,276,750.25/1,761,356.95 = 840,605.04/x
  3. Step 3: Cross multiply
    1,276,750.25x = 1,761,356.95 × 840,605.04
  4. Step 4: Simplify right side
    1,276,750.25x = 1,480,605,527,307.52
  5. Step 5: Solve for x
    x = 1,480,605,527,307.52/1,276,750.25
  6. Step 6: Final answer
    x = 1,159,667.31

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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.