Home / 876,809.10-1,315,213.65-404,417.10

Finding the Fourth Proportional to 876,809.10, 1,315,213.65 and 404,417.10

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Solution

The fourth proportional to 876,809.10, 1,315,213.65 and 404,417.10 is: 606,625.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,809.10 : 1,315,213.65 = 404,417.10 : x
  2. Step 2: Convert to fraction form
    876,809.10/1,315,213.65 = 404,417.10/x
  3. Step 3: Cross multiply
    876,809.10x = 1,315,213.65 × 404,417.10
  4. Step 4: Simplify right side
    876,809.10x = 531,894,890,213.42
  5. Step 5: Solve for x
    x = 531,894,890,213.42/876,809.10
  6. Step 6: Final answer
    x = 606,625.65

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Double scale
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Similar ratio
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1.5x scale

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.