Home / 1,187,345.64-1,781,037.90-345,943.56

Finding the Fourth Proportional to 1,187,345.64, 1,781,037.90 and 345,943.56

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Solution

The fourth proportional to 1,187,345.64, 1,781,037.90 and 345,943.56 is: 518,921.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,345.64 : 1,781,037.90 = 345,943.56 : x
  2. Step 2: Convert to fraction form
    1,187,345.64/1,781,037.90 = 345,943.56/x
  3. Step 3: Cross multiply
    1,187,345.64x = 1,781,037.90 × 345,943.56
  4. Step 4: Simplify right side
    1,187,345.64x = 616,138,591,620.92
  5. Step 5: Solve for x
    x = 616,138,591,620.92/1,187,345.64
  6. Step 6: Final answer
    x = 518,921.00

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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.