Home / 1,145,497.80-1,718,246.70-1,138,499.40

Finding the Fourth Proportional to 1,145,497.80, 1,718,246.70 and 1,138,499.40

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Solution

The fourth proportional to 1,145,497.80, 1,718,246.70 and 1,138,499.40 is: 1,707,749.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,497.80 : 1,718,246.70 = 1,138,499.40 : x
  2. Step 2: Convert to fraction form
    1,145,497.80/1,718,246.70 = 1,138,499.40/x
  3. Step 3: Cross multiply
    1,145,497.80x = 1,718,246.70 × 1,138,499.40
  4. Step 4: Simplify right side
    1,145,497.80x = 1,956,222,837,001.98
  5. Step 5: Solve for x
    x = 1,956,222,837,001.98/1,145,497.80
  6. Step 6: Final answer
    x = 1,707,749.10

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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.