Home / 738,897.90-1,108,357.74-487,786.56

Finding the Fourth Proportional to 738,897.90, 1,108,357.74 and 487,786.56

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Solution

The fourth proportional to 738,897.90, 1,108,357.74 and 487,786.56 is: 731,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,897.90 : 1,108,357.74 = 487,786.56 : x
  2. Step 2: Convert to fraction form
    738,897.90/1,108,357.74 = 487,786.56/x
  3. Step 3: Cross multiply
    738,897.90x = 1,108,357.74 × 487,786.56
  4. Step 4: Simplify right side
    738,897.90x = 540,642,009,243.97
  5. Step 5: Solve for x
    x = 540,642,009,243.97/738,897.90
  6. Step 6: Final answer
    x = 731,687.03

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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.