Home / 779,622.50-1,075,879.14-421,926.50

Finding the Fourth Proportional to 779,622.50, 1,075,879.14 and 421,926.50

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Solution

The fourth proportional to 779,622.50, 1,075,879.14 and 421,926.50 is: 582,258.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,622.50 : 1,075,879.14 = 421,926.50 : x
  2. Step 2: Convert to fraction form
    779,622.50/1,075,879.14 = 421,926.50/x
  3. Step 3: Cross multiply
    779,622.50x = 1,075,879.14 × 421,926.50
  4. Step 4: Simplify right side
    779,622.50x = 453,941,919,963.21
  5. Step 5: Solve for x
    x = 453,941,919,963.21/779,622.50
  6. Step 6: Final answer
    x = 582,258.62

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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.