Home / 921,878.50-1,382,960.21-314,524.61

Finding the Fourth Proportional to 921,878.50, 1,382,960.21 and 314,524.61

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Solution

The fourth proportional to 921,878.50, 1,382,960.21 and 314,524.61 is: 471,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,878.50 : 1,382,960.21 = 314,524.61 : x
  2. Step 2: Convert to fraction form
    921,878.50/1,382,960.21 = 314,524.61/x
  3. Step 3: Cross multiply
    921,878.50x = 1,382,960.21 × 314,524.61
  4. Step 4: Simplify right side
    921,878.50x = 434,975,020,695.77
  5. Step 5: Solve for x
    x = 434,975,020,695.77/921,878.50
  6. Step 6: Final answer
    x = 471,835.52

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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.