Home / 1,297,293.08-1,944,360.32-918,321.21

Finding the Fourth Proportional to 1,297,293.08, 1,944,360.32 and 918,321.21

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Solution

The fourth proportional to 1,297,293.08, 1,944,360.32 and 918,321.21 is: 1,376,363.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,293.08 : 1,944,360.32 = 918,321.21 : x
  2. Step 2: Convert to fraction form
    1,297,293.08/1,944,360.32 = 918,321.21/x
  3. Step 3: Cross multiply
    1,297,293.08x = 1,944,360.32 × 918,321.21
  4. Step 4: Simplify right side
    1,297,293.08x = 1,785,547,317,146.78
  5. Step 5: Solve for x
    x = 1,785,547,317,146.78/1,297,293.08
  6. Step 6: Final answer
    x = 1,376,363.87

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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.