Home / 1,403,213.48-2,105,350.46-842,638.76

Finding the Fourth Proportional to 1,403,213.48, 2,105,350.46 and 842,638.76

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Solution

The fourth proportional to 1,403,213.48, 2,105,350.46 and 842,638.76 is: 1,264,276.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,213.48 : 2,105,350.46 = 842,638.76 : x
  2. Step 2: Convert to fraction form
    1,403,213.48/2,105,350.46 = 842,638.76/x
  3. Step 3: Cross multiply
    1,403,213.48x = 2,105,350.46 × 842,638.76
  4. Step 4: Simplify right side
    1,403,213.48x = 1,774,049,900,979.83
  5. Step 5: Solve for x
    x = 1,774,049,900,979.83/1,403,213.48
  6. Step 6: Final answer
    x = 1,264,276.55

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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.