Home / 661,972.48-993,124.32-212,732.80

Finding the Fourth Proportional to 661,972.48, 993,124.32 and 212,732.80

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Solution

The fourth proportional to 661,972.48, 993,124.32 and 212,732.80 is: 319,152.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,972.48 : 993,124.32 = 212,732.80 : x
  2. Step 2: Convert to fraction form
    661,972.48/993,124.32 = 212,732.80/x
  3. Step 3: Cross multiply
    661,972.48x = 993,124.32 × 212,732.80
  4. Step 4: Simplify right side
    661,972.48x = 211,270,117,341.70
  5. Step 5: Solve for x
    x = 211,270,117,341.70/661,972.48
  6. Step 6: Final answer
    x = 319,152.42

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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.