Home / 790,368.78-1,090,607.31-450,816.78

Finding the Fourth Proportional to 790,368.78, 1,090,607.31 and 450,816.78

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Solution

The fourth proportional to 790,368.78, 1,090,607.31 and 450,816.78 is: 622,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,368.78 : 1,090,607.31 = 450,816.78 : x
  2. Step 2: Convert to fraction form
    790,368.78/1,090,607.31 = 450,816.78/x
  3. Step 3: Cross multiply
    790,368.78x = 1,090,607.31 × 450,816.78
  4. Step 4: Simplify right side
    790,368.78x = 491,664,075,738.66
  5. Step 5: Solve for x
    x = 491,664,075,738.66/790,368.78
  6. Step 6: Final answer
    x = 622,069.20

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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.