Home / 449,500.14-620,329.07-258,513.71

Finding the Fourth Proportional to 449,500.14, 620,329.07 and 258,513.71

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Solution

The fourth proportional to 449,500.14, 620,329.07 and 258,513.71 is: 356,759.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,500.14 : 620,329.07 = 258,513.71 : x
  2. Step 2: Convert to fraction form
    449,500.14/620,329.07 = 258,513.71/x
  3. Step 3: Cross multiply
    449,500.14x = 620,329.07 × 258,513.71
  4. Step 4: Simplify right side
    449,500.14x = 160,363,566,851.19
  5. Step 5: Solve for x
    x = 160,363,566,851.19/449,500.14
  6. Step 6: Final answer
    x = 356,759.77

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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.