Home / 448,319.30-670,496.07-398,747.30

Finding the Fourth Proportional to 448,319.30, 670,496.07 and 398,747.30

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Solution

The fourth proportional to 448,319.30, 670,496.07 and 398,747.30 is: 596,357.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,319.30 : 670,496.07 = 398,747.30 : x
  2. Step 2: Convert to fraction form
    448,319.30/670,496.07 = 398,747.30/x
  3. Step 3: Cross multiply
    448,319.30x = 670,496.07 × 398,747.30
  4. Step 4: Simplify right side
    448,319.30x = 267,358,497,573.11
  5. Step 5: Solve for x
    x = 267,358,497,573.11/448,319.30
  6. Step 6: Final answer
    x = 596,357.32

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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.