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Finding the Fourth Proportional to 497,901.88, 687,101.46 and 283,041.94

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Solution

The fourth proportional to 497,901.88, 687,101.46 and 283,041.94 is: 390,596.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,901.88 : 687,101.46 = 283,041.94 : x
  2. Step 2: Convert to fraction form
    497,901.88/687,101.46 = 283,041.94/x
  3. Step 3: Cross multiply
    497,901.88x = 687,101.46 × 283,041.94
  4. Step 4: Simplify right side
    497,901.88x = 194,478,530,215.23
  5. Step 5: Solve for x
    x = 194,478,530,215.23/497,901.88
  6. Step 6: Final answer
    x = 390,596.10

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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.