Home / 499,137.52-749,056.20-288,485.68

Finding the Fourth Proportional to 499,137.52, 749,056.20 and 288,485.68

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Solution

The fourth proportional to 499,137.52, 749,056.20 and 288,485.68 is: 432,930.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,137.52 : 749,056.20 = 288,485.68 : x
  2. Step 2: Convert to fraction form
    499,137.52/749,056.20 = 288,485.68/x
  3. Step 3: Cross multiply
    499,137.52x = 749,056.20 × 288,485.68
  4. Step 4: Simplify right side
    499,137.52x = 216,091,987,215.22
  5. Step 5: Solve for x
    x = 216,091,987,215.22/499,137.52
  6. Step 6: Final answer
    x = 432,930.76

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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.