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Finding the Fourth Proportional to 506,011.08, 698,267.88 and 279,642

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Solution

The fourth proportional to 506,011.08, 698,267.88 and 279,642 is: 385,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,011.08 : 698,267.88 = 279,642 : x
  2. Step 2: Convert to fraction form
    506,011.08/698,267.88 = 279,642/x
  3. Step 3: Cross multiply
    506,011.08x = 698,267.88 × 279,642
  4. Step 4: Simplify right side
    506,011.08x = 195,265,026,498.96
  5. Step 5: Solve for x
    x = 195,265,026,498.96/506,011.08
  6. Step 6: Final answer
    x = 385,890.81

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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.