Home / 903,012.30-1,245,981.29-535,421.34

Finding the Fourth Proportional to 903,012.30, 1,245,981.29 and 535,421.34

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Solution

The fourth proportional to 903,012.30, 1,245,981.29 and 535,421.34 is: 738,777.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,012.30 : 1,245,981.29 = 535,421.34 : x
  2. Step 2: Convert to fraction form
    903,012.30/1,245,981.29 = 535,421.34/x
  3. Step 3: Cross multiply
    903,012.30x = 1,245,981.29 × 535,421.34
  4. Step 4: Simplify right side
    903,012.30x = 667,124,969,229.62
  5. Step 5: Solve for x
    x = 667,124,969,229.62/903,012.30
  6. Step 6: Final answer
    x = 738,777.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.