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Finding the Fourth Proportional to 614,225.36, 847,631.81 and 342,287.28

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Solution

The fourth proportional to 614,225.36, 847,631.81 and 342,287.28 is: 472,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,225.36 : 847,631.81 = 342,287.28 : x
  2. Step 2: Convert to fraction form
    614,225.36/847,631.81 = 342,287.28/x
  3. Step 3: Cross multiply
    614,225.36x = 847,631.81 × 342,287.28
  4. Step 4: Simplify right side
    614,225.36x = 290,133,588,153.56
  5. Step 5: Solve for x
    x = 290,133,588,153.56/614,225.36
  6. Step 6: Final answer
    x = 472,356.90

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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.