Home / 710,972.80-1,066,612.80-212,387.20

Finding the Fourth Proportional to 710,972.80, 1,066,612.80 and 212,387.20

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Solution

The fourth proportional to 710,972.80, 1,066,612.80 and 212,387.20 is: 318,626.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,972.80 : 1,066,612.80 = 212,387.20 : x
  2. Step 2: Convert to fraction form
    710,972.80/1,066,612.80 = 212,387.20/x
  3. Step 3: Cross multiply
    710,972.80x = 1,066,612.80 × 212,387.20
  4. Step 4: Simplify right side
    710,972.80x = 226,534,906,076.16
  5. Step 5: Solve for x
    x = 226,534,906,076.16/710,972.80
  6. Step 6: Final answer
    x = 318,626.68

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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.