Home / 908,121.20-1,362,959.40-403,458.80

Finding the Fourth Proportional to 908,121.20, 1,362,959.40 and 403,458.80

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Solution

The fourth proportional to 908,121.20, 1,362,959.40 and 403,458.80 is: 605,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,121.20 : 1,362,959.40 = 403,458.80 : x
  2. Step 2: Convert to fraction form
    908,121.20/1,362,959.40 = 403,458.80/x
  3. Step 3: Cross multiply
    908,121.20x = 1,362,959.40 × 403,458.80
  4. Step 4: Simplify right side
    908,121.20x = 549,897,963,972.72
  5. Step 5: Solve for x
    x = 549,897,963,972.72/908,121.20
  6. Step 6: Final answer
    x = 605,533.67

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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.