Home / 907,559.78-1,361,339.94-338,985.68

Finding the Fourth Proportional to 907,559.78, 1,361,339.94 and 338,985.68

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Solution

The fourth proportional to 907,559.78, 1,361,339.94 and 338,985.68 is: 508,478.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,559.78 : 1,361,339.94 = 338,985.68 : x
  2. Step 2: Convert to fraction form
    907,559.78/1,361,339.94 = 338,985.68/x
  3. Step 3: Cross multiply
    907,559.78x = 1,361,339.94 × 338,985.68
  4. Step 4: Simplify right side
    907,559.78x = 461,474,745,272.06
  5. Step 5: Solve for x
    x = 461,474,745,272.06/907,559.78
  6. Step 6: Final answer
    x = 508,478.62

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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.