Home / 897,941.21-1,239,178.43-490,044.65

Finding the Fourth Proportional to 897,941.21, 1,239,178.43 and 490,044.65

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Solution

The fourth proportional to 897,941.21, 1,239,178.43 and 490,044.65 is: 676,272.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,941.21 : 1,239,178.43 = 490,044.65 : x
  2. Step 2: Convert to fraction form
    897,941.21/1,239,178.43 = 490,044.65/x
  3. Step 3: Cross multiply
    897,941.21x = 1,239,178.43 × 490,044.65
  4. Step 4: Simplify right side
    897,941.21x = 607,252,755,046.12
  5. Step 5: Solve for x
    x = 607,252,755,046.12/897,941.21
  6. Step 6: Final answer
    x = 676,272.29

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Double scale
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1.5x scale

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.