Home / 779,672.76-1,075,948.29-421,976.76

Finding the Fourth Proportional to 779,672.76, 1,075,948.29 and 421,976.76

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Solution

The fourth proportional to 779,672.76, 1,075,948.29 and 421,976.76 is: 582,327.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,672.76 : 1,075,948.29 = 421,976.76 : x
  2. Step 2: Convert to fraction form
    779,672.76/1,075,948.29 = 421,976.76/x
  3. Step 3: Cross multiply
    779,672.76x = 1,075,948.29 × 421,976.76
  4. Step 4: Simplify right side
    779,672.76x = 454,025,173,341.74
  5. Step 5: Solve for x
    x = 454,025,173,341.74/779,672.76
  6. Step 6: Final answer
    x = 582,327.86

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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.