Home / 1,020,929.22-1,531,394.01-421,231.50

Finding the Fourth Proportional to 1,020,929.22, 1,531,394.01 and 421,231.50

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Solution

The fourth proportional to 1,020,929.22, 1,531,394.01 and 421,231.50 is: 631,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,929.22 : 1,531,394.01 = 421,231.50 : x
  2. Step 2: Convert to fraction form
    1,020,929.22/1,531,394.01 = 421,231.50/x
  3. Step 3: Cross multiply
    1,020,929.22x = 1,531,394.01 × 421,231.50
  4. Step 4: Simplify right side
    1,020,929.22x = 645,071,395,923.32
  5. Step 5: Solve for x
    x = 645,071,395,923.32/1,020,929.22
  6. Step 6: Final answer
    x = 631,847.32

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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.