Home / 810,590.14-1,118,635.46-448,019.71

Finding the Fourth Proportional to 810,590.14, 1,118,635.46 and 448,019.71

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Solution

The fourth proportional to 810,590.14, 1,118,635.46 and 448,019.71 is: 618,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,590.14 : 1,118,635.46 = 448,019.71 : x
  2. Step 2: Convert to fraction form
    810,590.14/1,118,635.46 = 448,019.71/x
  3. Step 3: Cross multiply
    810,590.14x = 1,118,635.46 × 448,019.71
  4. Step 4: Simplify right side
    810,590.14x = 501,170,733,548.41
  5. Step 5: Solve for x
    x = 501,170,733,548.41/810,590.14
  6. Step 6: Final answer
    x = 618,278.85

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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.