Home / 710,905.50-1,066,253.13-261,521.28

Finding the Fourth Proportional to 710,905.50, 1,066,253.13 and 261,521.28

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Solution

The fourth proportional to 710,905.50, 1,066,253.13 and 261,521.28 is: 392,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,905.50 : 1,066,253.13 = 261,521.28 : x
  2. Step 2: Convert to fraction form
    710,905.50/1,066,253.13 = 261,521.28/x
  3. Step 3: Cross multiply
    710,905.50x = 1,066,253.13 × 261,521.28
  4. Step 4: Simplify right side
    710,905.50x = 278,847,883,361.61
  5. Step 5: Solve for x
    x = 278,847,883,361.61/710,905.50
  6. Step 6: Final answer
    x = 392,243.25

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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.