Home / 498,904.78-688,588.77-326,524.76

Finding the Fourth Proportional to 498,904.78, 688,588.77 and 326,524.76

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Solution

The fourth proportional to 498,904.78, 688,588.77 and 326,524.76 is: 450,669.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,904.78 : 688,588.77 = 326,524.76 : x
  2. Step 2: Convert to fraction form
    498,904.78/688,588.77 = 326,524.76/x
  3. Step 3: Cross multiply
    498,904.78x = 688,588.77 × 326,524.76
  4. Step 4: Simplify right side
    498,904.78x = 224,841,279,420.00
  5. Step 5: Solve for x
    x = 224,841,279,420.00/498,904.78
  6. Step 6: Final answer
    x = 450,669.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.