Home / 989,205.15-1,483,810.16-279,232.86

Finding the Fourth Proportional to 989,205.15, 1,483,810.16 and 279,232.86

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Solution

The fourth proportional to 989,205.15, 1,483,810.16 and 279,232.86 is: 418,849.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,205.15 : 1,483,810.16 = 279,232.86 : x
  2. Step 2: Convert to fraction form
    989,205.15/1,483,810.16 = 279,232.86/x
  3. Step 3: Cross multiply
    989,205.15x = 1,483,810.16 × 279,232.86
  4. Step 4: Simplify right side
    989,205.15x = 414,328,553,277.69
  5. Step 5: Solve for x
    x = 414,328,553,277.69/989,205.15
  6. Step 6: Final answer
    x = 418,849.98

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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.