Home / 644,345.58-966,505.73-260,084.21

Finding the Fourth Proportional to 644,345.58, 966,505.73 and 260,084.21

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Solution

The fourth proportional to 644,345.58, 966,505.73 and 260,084.21 is: 390,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,345.58 : 966,505.73 = 260,084.21 : x
  2. Step 2: Convert to fraction form
    644,345.58/966,505.73 = 260,084.21/x
  3. Step 3: Cross multiply
    644,345.58x = 966,505.73 × 260,084.21
  4. Step 4: Simplify right side
    644,345.58x = 251,372,879,247.52
  5. Step 5: Solve for x
    x = 251,372,879,247.52/644,345.58
  6. Step 6: Final answer
    x = 390,121.21

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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.