Home / 779,442.75-1,075,634.24-421,746.75

Finding the Fourth Proportional to 779,442.75, 1,075,634.24 and 421,746.75

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Solution

The fourth proportional to 779,442.75, 1,075,634.24 and 421,746.75 is: 582,012.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,442.75 : 1,075,634.24 = 421,746.75 : x
  2. Step 2: Convert to fraction form
    779,442.75/1,075,634.24 = 421,746.75/x
  3. Step 3: Cross multiply
    779,442.75x = 1,075,634.24 × 421,746.75
  4. Step 4: Simplify right side
    779,442.75x = 453,645,242,799.99
  5. Step 5: Solve for x
    x = 453,645,242,799.99/779,442.75
  6. Step 6: Final answer
    x = 582,012.27

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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.