Home / 1,242,333.70-1,863,541.95-343,700.15

Finding the Fourth Proportional to 1,242,333.70, 1,863,541.95 and 343,700.15

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Solution

The fourth proportional to 1,242,333.70, 1,863,541.95 and 343,700.15 is: 515,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,333.70 : 1,863,541.95 = 343,700.15 : x
  2. Step 2: Convert to fraction form
    1,242,333.70/1,863,541.95 = 343,700.15/x
  3. Step 3: Cross multiply
    1,242,333.70x = 1,863,541.95 × 343,700.15
  4. Step 4: Simplify right side
    1,242,333.70x = 640,499,652,405.15
  5. Step 5: Solve for x
    x = 640,499,652,405.15/1,242,333.70
  6. Step 6: Final answer
    x = 515,561.68

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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.