Home / 969,855.95-1,338,442.73-540,136.08

Finding the Fourth Proportional to 969,855.95, 1,338,442.73 and 540,136.08

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Solution

The fourth proportional to 969,855.95, 1,338,442.73 and 540,136.08 is: 745,410.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,855.95 : 1,338,442.73 = 540,136.08 : x
  2. Step 2: Convert to fraction form
    969,855.95/1,338,442.73 = 540,136.08/x
  3. Step 3: Cross multiply
    969,855.95x = 1,338,442.73 × 540,136.08
  4. Step 4: Simplify right side
    969,855.95x = 722,941,212,406.87
  5. Step 5: Solve for x
    x = 722,941,212,406.87/969,855.95
  6. Step 6: Final answer
    x = 745,410.91

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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.