Home / 779,539.52-1,075,768.08-421,843.52

Finding the Fourth Proportional to 779,539.52, 1,075,768.08 and 421,843.52

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Solution

The fourth proportional to 779,539.52, 1,075,768.08 and 421,843.52 is: 582,145.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,539.52 : 1,075,768.08 = 421,843.52 : x
  2. Step 2: Convert to fraction form
    779,539.52/1,075,768.08 = 421,843.52/x
  3. Step 3: Cross multiply
    779,539.52x = 1,075,768.08 × 421,843.52
  4. Step 4: Simplify right side
    779,539.52x = 453,805,793,570.84
  5. Step 5: Solve for x
    x = 453,805,793,570.84/779,539.52
  6. Step 6: Final answer
    x = 582,145.97

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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.