Home / 909,821.57-1,255,328.04-599,689.78

Finding the Fourth Proportional to 909,821.57, 1,255,328.04 and 599,689.78

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Solution

The fourth proportional to 909,821.57, 1,255,328.04 and 599,689.78 is: 827,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,821.57 : 1,255,328.04 = 599,689.78 : x
  2. Step 2: Convert to fraction form
    909,821.57/1,255,328.04 = 599,689.78/x
  3. Step 3: Cross multiply
    909,821.57x = 1,255,328.04 × 599,689.78
  4. Step 4: Simplify right side
    909,821.57x = 752,807,395,245.95
  5. Step 5: Solve for x
    x = 752,807,395,245.95/909,821.57
  6. Step 6: Final answer
    x = 827,423.12

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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.