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Finding the Fourth Proportional to 506,240.86, 698,626.47 and 279,900.94

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Solution

The fourth proportional to 506,240.86, 698,626.47 and 279,900.94 is: 386,271.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,240.86 : 698,626.47 = 279,900.94 : x
  2. Step 2: Convert to fraction form
    506,240.86/698,626.47 = 279,900.94/x
  3. Step 3: Cross multiply
    506,240.86x = 698,626.47 × 279,900.94
  4. Step 4: Simplify right side
    506,240.86x = 195,546,205,661.88
  5. Step 5: Solve for x
    x = 195,546,205,661.88/506,240.86
  6. Step 6: Final answer
    x = 386,271.08

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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.