Home / 825,045.95-1,237,921.89-345,385.82

Finding the Fourth Proportional to 825,045.95, 1,237,921.89 and 345,385.82

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Solution

The fourth proportional to 825,045.95, 1,237,921.89 and 345,385.82 is: 518,226.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,045.95 : 1,237,921.89 = 345,385.82 : x
  2. Step 2: Convert to fraction form
    825,045.95/1,237,921.89 = 345,385.82/x
  3. Step 3: Cross multiply
    825,045.95x = 1,237,921.89 × 345,385.82
  4. Step 4: Simplify right side
    825,045.95x = 427,560,668,873.21
  5. Step 5: Solve for x
    x = 427,560,668,873.21/825,045.95
  6. Step 6: Final answer
    x = 518,226.49

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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.