Home / 1,092,607.80-1,638,134.10-418,428.60

Finding the Fourth Proportional to 1,092,607.80, 1,638,134.10 and 418,428.60

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Solution

The fourth proportional to 1,092,607.80, 1,638,134.10 and 418,428.60 is: 627,345.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,607.80 : 1,638,134.10 = 418,428.60 : x
  2. Step 2: Convert to fraction form
    1,092,607.80/1,638,134.10 = 418,428.60/x
  3. Step 3: Cross multiply
    1,092,607.80x = 1,638,134.10 × 418,428.60
  4. Step 4: Simplify right side
    1,092,607.80x = 685,442,158,075.26
  5. Step 5: Solve for x
    x = 685,442,158,075.26/1,092,607.80
  6. Step 6: Final answer
    x = 627,345.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.