Home / 879,849.61-1,213,910.15-492,607.98

Finding the Fourth Proportional to 879,849.61, 1,213,910.15 and 492,607.98

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Solution

The fourth proportional to 879,849.61, 1,213,910.15 and 492,607.98 is: 679,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,849.61 : 1,213,910.15 = 492,607.98 : x
  2. Step 2: Convert to fraction form
    879,849.61/1,213,910.15 = 492,607.98/x
  3. Step 3: Cross multiply
    879,849.61x = 1,213,910.15 × 492,607.98
  4. Step 4: Simplify right side
    879,849.61x = 597,981,824,429.96
  5. Step 5: Solve for x
    x = 597,981,824,429.96/879,849.61
  6. Step 6: Final answer
    x = 679,640.95

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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.