Home / 806,276.18-1,112,646.73-438,740.78

Finding the Fourth Proportional to 806,276.18, 1,112,646.73 and 438,740.78

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Solution

The fourth proportional to 806,276.18, 1,112,646.73 and 438,740.78 is: 605,454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,276.18 : 1,112,646.73 = 438,740.78 : x
  2. Step 2: Convert to fraction form
    806,276.18/1,112,646.73 = 438,740.78/x
  3. Step 3: Cross multiply
    806,276.18x = 1,112,646.73 × 438,740.78
  4. Step 4: Simplify right side
    806,276.18x = 488,163,486,427.71
  5. Step 5: Solve for x
    x = 488,163,486,427.71/806,276.18
  6. Step 6: Final answer
    x = 605,454.44

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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.