Home / 810,589.05-1,118,670.81-448,005.11

Finding the Fourth Proportional to 810,589.05, 1,118,670.81 and 448,005.11

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Solution

The fourth proportional to 810,589.05, 1,118,670.81 and 448,005.11 is: 618,279.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,589.05 : 1,118,670.81 = 448,005.11 : x
  2. Step 2: Convert to fraction form
    810,589.05/1,118,670.81 = 448,005.11/x
  3. Step 3: Cross multiply
    810,589.05x = 1,118,670.81 × 448,005.11
  4. Step 4: Simplify right side
    810,589.05x = 501,170,231,454.46
  5. Step 5: Solve for x
    x = 501,170,231,454.46/810,589.05
  6. Step 6: Final answer
    x = 618,279.05

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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.