Home / 1,700,900.78-2,551,287.20-421,511.92

Finding the Fourth Proportional to 1,700,900.78, 2,551,287.20 and 421,511.92

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Solution

The fourth proportional to 1,700,900.78, 2,551,287.20 and 421,511.92 is: 632,252.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700,900.78 : 2,551,287.20 = 421,511.92 : x
  2. Step 2: Convert to fraction form
    1,700,900.78/2,551,287.20 = 421,511.92/x
  3. Step 3: Cross multiply
    1,700,900.78x = 2,551,287.20 × 421,511.92
  4. Step 4: Simplify right side
    1,700,900.78x = 1,075,397,957,657.65
  5. Step 5: Solve for x
    x = 1,075,397,957,657.65/1,700,900.78
  6. Step 6: Final answer
    x = 632,252.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.