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Finding the Fourth Proportional to 566,483.88, 781,739.46 and 311,828.52

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Solution

The fourth proportional to 566,483.88, 781,739.46 and 311,828.52 is: 430,318.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,483.88 : 781,739.46 = 311,828.52 : x
  2. Step 2: Convert to fraction form
    566,483.88/781,739.46 = 311,828.52/x
  3. Step 3: Cross multiply
    566,483.88x = 781,739.46 × 311,828.52
  4. Step 4: Simplify right side
    566,483.88x = 243,768,658,837.40
  5. Step 5: Solve for x
    x = 243,768,658,837.40/566,483.88
  6. Step 6: Final answer
    x = 430,318.79

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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.