Home / 926,632.40-1,388,782.20-821,656.40

Finding the Fourth Proportional to 926,632.40, 1,388,782.20 and 821,656.40

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Solution

The fourth proportional to 926,632.40, 1,388,782.20 and 821,656.40 is: 1,231,450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,632.40 : 1,388,782.20 = 821,656.40 : x
  2. Step 2: Convert to fraction form
    926,632.40/1,388,782.20 = 821,656.40/x
  3. Step 3: Cross multiply
    926,632.40x = 1,388,782.20 × 821,656.40
  4. Step 4: Simplify right side
    926,632.40x = 1,141,101,782,836.08
  5. Step 5: Solve for x
    x = 1,141,101,782,836.08/926,632.40
  6. Step 6: Final answer
    x = 1,231,450.34

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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.