Home / 448,284.08-672,422.77-128,436.22

Finding the Fourth Proportional to 448,284.08, 672,422.77 and 128,436.22

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Solution

The fourth proportional to 448,284.08, 672,422.77 and 128,436.22 is: 192,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,284.08 : 672,422.77 = 128,436.22 : x
  2. Step 2: Convert to fraction form
    448,284.08/672,422.77 = 128,436.22/x
  3. Step 3: Cross multiply
    448,284.08x = 672,422.77 × 128,436.22
  4. Step 4: Simplify right side
    448,284.08x = 86,363,438,178.55
  5. Step 5: Solve for x
    x = 86,363,438,178.55/448,284.08
  6. Step 6: Final answer
    x = 192,653.37

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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.