Home / 779,602.50-1,075,851.45-421,906.50

Finding the Fourth Proportional to 779,602.50, 1,075,851.45 and 421,906.50

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Solution

The fourth proportional to 779,602.50, 1,075,851.45 and 421,906.50 is: 582,230.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,602.50 : 1,075,851.45 = 421,906.50 : x
  2. Step 2: Convert to fraction form
    779,602.50/1,075,851.45 = 421,906.50/x
  3. Step 3: Cross multiply
    779,602.50x = 1,075,851.45 × 421,906.50
  4. Step 4: Simplify right side
    779,602.50x = 453,908,719,789.43
  5. Step 5: Solve for x
    x = 453,908,719,789.43/779,602.50
  6. Step 6: Final answer
    x = 582,230.97

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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.