Home / 806,276.68-1,112,647.42-438,741.28

Finding the Fourth Proportional to 806,276.68, 1,112,647.42 and 438,741.28

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Solution

The fourth proportional to 806,276.68, 1,112,647.42 and 438,741.28 is: 605,455.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,276.68 : 1,112,647.42 = 438,741.28 : x
  2. Step 2: Convert to fraction form
    806,276.68/1,112,647.42 = 438,741.28/x
  3. Step 3: Cross multiply
    806,276.68x = 1,112,647.42 × 438,741.28
  4. Step 4: Simplify right side
    806,276.68x = 488,164,345,482.55
  5. Step 5: Solve for x
    x = 488,164,345,482.55/806,276.68
  6. Step 6: Final answer
    x = 605,455.13

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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.