Home / 872,440.64-1,308,124.88-339,340.24

Finding the Fourth Proportional to 872,440.64, 1,308,124.88 and 339,340.24

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Solution

The fourth proportional to 872,440.64, 1,308,124.88 and 339,340.24 is: 508,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,440.64 : 1,308,124.88 = 339,340.24 : x
  2. Step 2: Convert to fraction form
    872,440.64/1,308,124.88 = 339,340.24/x
  3. Step 3: Cross multiply
    872,440.64x = 1,308,124.88 × 339,340.24
  4. Step 4: Simplify right side
    872,440.64x = 443,899,410,729.17
  5. Step 5: Solve for x
    x = 443,899,410,729.17/872,440.64
  6. Step 6: Final answer
    x = 508,801.85

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1.5x scale

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.