Home / 1,403,215.48-2,105,353.46-842,640.76

Finding the Fourth Proportional to 1,403,215.48, 2,105,353.46 and 842,640.76

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Solution

The fourth proportional to 1,403,215.48, 2,105,353.46 and 842,640.76 is: 1,264,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,215.48 : 2,105,353.46 = 842,640.76 : x
  2. Step 2: Convert to fraction form
    1,403,215.48/2,105,353.46 = 842,640.76/x
  3. Step 3: Cross multiply
    1,403,215.48x = 2,105,353.46 × 842,640.76
  4. Step 4: Simplify right side
    1,403,215.48x = 1,774,056,639,603.03
  5. Step 5: Solve for x
    x = 1,774,056,639,603.03/1,403,215.48
  6. Step 6: Final answer
    x = 1,264,279.55

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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.