Home / 909,969.60-1,364,954.40-310,840.95

Finding the Fourth Proportional to 909,969.60, 1,364,954.40 and 310,840.95

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Solution

The fourth proportional to 909,969.60, 1,364,954.40 and 310,840.95 is: 466,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,969.60 : 1,364,954.40 = 310,840.95 : x
  2. Step 2: Convert to fraction form
    909,969.60/1,364,954.40 = 310,840.95/x
  3. Step 3: Cross multiply
    909,969.60x = 1,364,954.40 × 310,840.95
  4. Step 4: Simplify right side
    909,969.60x = 424,283,722,402.68
  5. Step 5: Solve for x
    x = 424,283,722,402.68/909,969.60
  6. Step 6: Final answer
    x = 466,261.43

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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.