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Finding the Fourth Proportional to 487,814.21, 730,774.52 and 359,497.45

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Solution

The fourth proportional to 487,814.21, 730,774.52 and 359,497.45 is: 538,548.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,814.21 : 730,774.52 = 359,497.45 : x
  2. Step 2: Convert to fraction form
    487,814.21/730,774.52 = 359,497.45/x
  3. Step 3: Cross multiply
    487,814.21x = 730,774.52 × 359,497.45
  4. Step 4: Simplify right side
    487,814.21x = 262,711,572,840.55
  5. Step 5: Solve for x
    x = 262,711,572,840.55/487,814.21
  6. Step 6: Final answer
    x = 538,548.43

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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.