Home / 426,036.39-639,142.07-173,316.24

Finding the Fourth Proportional to 426,036.39, 639,142.07 and 173,316.24

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Solution

The fourth proportional to 426,036.39, 639,142.07 and 173,316.24 is: 260,009.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,036.39 : 639,142.07 = 173,316.24 : x
  2. Step 2: Convert to fraction form
    426,036.39/639,142.07 = 173,316.24/x
  3. Step 3: Cross multiply
    426,036.39x = 639,142.07 × 173,316.24
  4. Step 4: Simplify right side
    426,036.39x = 110,773,700,398.22
  5. Step 5: Solve for x
    x = 110,773,700,398.22/426,036.39
  6. Step 6: Final answer
    x = 260,009.95

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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.