Home / 909,872.80-1,364,679.60-310,861.60

Finding the Fourth Proportional to 909,872.80, 1,364,679.60 and 310,861.60

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Solution

The fourth proportional to 909,872.80, 1,364,679.60 and 310,861.60 is: 466,248.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,872.80 : 1,364,679.60 = 310,861.60 : x
  2. Step 2: Convert to fraction form
    909,872.80/1,364,679.60 = 310,861.60/x
  3. Step 3: Cross multiply
    909,872.80x = 1,364,679.60 × 310,861.60
  4. Step 4: Simplify right side
    909,872.80x = 424,226,483,943.36
  5. Step 5: Solve for x
    x = 424,226,483,943.36/909,872.80
  6. Step 6: Final answer
    x = 466,248.12

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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.