Home / 849,378.54-1,172,192.85-486,825.83

Finding the Fourth Proportional to 849,378.54, 1,172,192.85 and 486,825.83

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Solution

The fourth proportional to 849,378.54, 1,172,192.85 and 486,825.83 is: 671,848.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,378.54 : 1,172,192.85 = 486,825.83 : x
  2. Step 2: Convert to fraction form
    849,378.54/1,172,192.85 = 486,825.83/x
  3. Step 3: Cross multiply
    849,378.54x = 1,172,192.85 × 486,825.83
  4. Step 4: Simplify right side
    849,378.54x = 570,653,757,121.32
  5. Step 5: Solve for x
    x = 570,653,757,121.32/849,378.54
  6. Step 6: Final answer
    x = 671,848.57

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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.