Home / 900,888.52-1,243,226.04-492,990.44

Finding the Fourth Proportional to 900,888.52, 1,243,226.04 and 492,990.44

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Solution

The fourth proportional to 900,888.52, 1,243,226.04 and 492,990.44 is: 680,326.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,888.52 : 1,243,226.04 = 492,990.44 : x
  2. Step 2: Convert to fraction form
    900,888.52/1,243,226.04 = 492,990.44/x
  3. Step 3: Cross multiply
    900,888.52x = 1,243,226.04 × 492,990.44
  4. Step 4: Simplify right side
    900,888.52x = 612,898,552,479.06
  5. Step 5: Solve for x
    x = 612,898,552,479.06/900,888.52
  6. Step 6: Final answer
    x = 680,326.74

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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.