Home / 789,968.71-1,090,156.26-445,877.08

Finding the Fourth Proportional to 789,968.71, 1,090,156.26 and 445,877.08

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Solution

The fourth proportional to 789,968.71, 1,090,156.26 and 445,877.08 is: 615,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,968.71 : 1,090,156.26 = 445,877.08 : x
  2. Step 2: Convert to fraction form
    789,968.71/1,090,156.26 = 445,877.08/x
  3. Step 3: Cross multiply
    789,968.71x = 1,090,156.26 × 445,877.08
  4. Step 4: Simplify right side
    789,968.71x = 486,075,689,952.52
  5. Step 5: Solve for x
    x = 486,075,689,952.52/789,968.71
  6. Step 6: Final answer
    x = 615,310.05

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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.