Home / 426,035.39-639,140.57-173,315.24

Finding the Fourth Proportional to 426,035.39, 639,140.57 and 173,315.24

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Solution

The fourth proportional to 426,035.39, 639,140.57 and 173,315.24 is: 260,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,035.39 : 639,140.57 = 173,315.24 : x
  2. Step 2: Convert to fraction form
    426,035.39/639,140.57 = 173,315.24/x
  3. Step 3: Cross multiply
    426,035.39x = 639,140.57 × 173,315.24
  4. Step 4: Simplify right side
    426,035.39x = 110,772,800,416.71
  5. Step 5: Solve for x
    x = 110,772,800,416.71/426,035.39
  6. Step 6: Final answer
    x = 260,008.45

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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.