Home / 1,243,405.76-1,865,108.54-344,847.48

Finding the Fourth Proportional to 1,243,405.76, 1,865,108.54 and 344,847.48

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Solution

The fourth proportional to 1,243,405.76, 1,865,108.54 and 344,847.48 is: 517,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,405.76 : 1,865,108.54 = 344,847.48 : x
  2. Step 2: Convert to fraction form
    1,243,405.76/1,865,108.54 = 344,847.48/x
  3. Step 3: Cross multiply
    1,243,405.76x = 1,865,108.54 × 344,847.48
  4. Step 4: Simplify right side
    1,243,405.76x = 643,177,979,945.48
  5. Step 5: Solve for x
    x = 643,177,979,945.48/1,243,405.76
  6. Step 6: Final answer
    x = 517,271.19

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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.