Home / 498,835.84-688,408.32-272,485.12

Finding the Fourth Proportional to 498,835.84, 688,408.32 and 272,485.12

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Solution

The fourth proportional to 498,835.84, 688,408.32 and 272,485.12 is: 376,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,835.84 : 688,408.32 = 272,485.12 : x
  2. Step 2: Convert to fraction form
    498,835.84/688,408.32 = 272,485.12/x
  3. Step 3: Cross multiply
    498,835.84x = 688,408.32 × 272,485.12
  4. Step 4: Simplify right side
    498,835.84x = 187,581,023,684.20
  5. Step 5: Solve for x
    x = 187,581,023,684.20/498,835.84
  6. Step 6: Final answer
    x = 376,037.58

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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.