Home / 426,037.39-639,143.57-173,317.24

Finding the Fourth Proportional to 426,037.39, 639,143.57 and 173,317.24

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Solution

The fourth proportional to 426,037.39, 639,143.57 and 173,317.24 is: 260,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,037.39 : 639,143.57 = 173,317.24 : x
  2. Step 2: Convert to fraction form
    426,037.39/639,143.57 = 173,317.24/x
  3. Step 3: Cross multiply
    426,037.39x = 639,143.57 × 173,317.24
  4. Step 4: Simplify right side
    426,037.39x = 110,774,599,516.15
  5. Step 5: Solve for x
    x = 110,774,599,516.15/426,037.39
  6. Step 6: Final answer
    x = 260,011.45

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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.