Home / 1,687,993.50-2,329,430.85-913,624.21

Finding the Fourth Proportional to 1,687,993.50, 2,329,430.85 and 913,624.21

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Solution

The fourth proportional to 1,687,993.50, 2,329,430.85 and 913,624.21 is: 1,260,801.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,993.50 : 2,329,430.85 = 913,624.21 : x
  2. Step 2: Convert to fraction form
    1,687,993.50/2,329,430.85 = 913,624.21/x
  3. Step 3: Cross multiply
    1,687,993.50x = 2,329,430.85 × 913,624.21
  4. Step 4: Simplify right side
    1,687,993.50x = 2,128,224,410,717.78
  5. Step 5: Solve for x
    x = 2,128,224,410,717.78/1,687,993.50
  6. Step 6: Final answer
    x = 1,260,801.31

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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.