Home / 801,243.36-1,105,718.40-438,670.08

Finding the Fourth Proportional to 801,243.36, 1,105,718.40 and 438,670.08

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Solution

The fourth proportional to 801,243.36, 1,105,718.40 and 438,670.08 is: 605,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,243.36 : 1,105,718.40 = 438,670.08 : x
  2. Step 2: Convert to fraction form
    801,243.36/1,105,718.40 = 438,670.08/x
  3. Step 3: Cross multiply
    801,243.36x = 1,105,718.40 × 438,670.08
  4. Step 4: Simplify right side
    801,243.36x = 485,045,578,985.47
  5. Step 5: Solve for x
    x = 485,045,578,985.47/801,243.36
  6. Step 6: Final answer
    x = 605,366.11

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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.