Home / 909,464.52-1,364,321.28-310,264.80

Finding the Fourth Proportional to 909,464.52, 1,364,321.28 and 310,264.80

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Solution

The fourth proportional to 909,464.52, 1,364,321.28 and 310,264.80 is: 465,439.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,464.52 : 1,364,321.28 = 310,264.80 : x
  2. Step 2: Convert to fraction form
    909,464.52/1,364,321.28 = 310,264.80/x
  3. Step 3: Cross multiply
    909,464.52x = 1,364,321.28 × 310,264.80
  4. Step 4: Simplify right side
    909,464.52x = 423,300,869,074.94
  5. Step 5: Solve for x
    x = 423,300,869,074.94/909,464.52
  6. Step 6: Final answer
    x = 465,439.67

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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.