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Finding the Fourth Proportional to 615,697.74, 849,438.50 and 360,999.72

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Solution

The fourth proportional to 615,697.74, 849,438.50 and 360,999.72 is: 498,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,697.74 : 849,438.50 = 360,999.72 : x
  2. Step 2: Convert to fraction form
    615,697.74/849,438.50 = 360,999.72/x
  3. Step 3: Cross multiply
    615,697.74x = 849,438.50 × 360,999.72
  4. Step 4: Simplify right side
    615,697.74x = 306,647,058,852.22
  5. Step 5: Solve for x
    x = 306,647,058,852.22/615,697.74
  6. Step 6: Final answer
    x = 498,048.05

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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.