Home / 1,361,138.50-1,878,371.13-757,669.06

Finding the Fourth Proportional to 1,361,138.50, 1,878,371.13 and 757,669.06

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Solution

The fourth proportional to 1,361,138.50, 1,878,371.13 and 757,669.06 is: 1,045,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,138.50 : 1,878,371.13 = 757,669.06 : x
  2. Step 2: Convert to fraction form
    1,361,138.50/1,878,371.13 = 757,669.06/x
  3. Step 3: Cross multiply
    1,361,138.50x = 1,878,371.13 × 757,669.06
  4. Step 4: Simplify right side
    1,361,138.50x = 1,423,183,688,398.24
  5. Step 5: Solve for x
    x = 1,423,183,688,398.24/1,361,138.50
  6. Step 6: Final answer
    x = 1,045,583.30

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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.