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Finding the Fourth Proportional to 506,403, 698,807.88 and 276,914.76

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Solution

The fourth proportional to 506,403, 698,807.88 and 276,914.76 is: 382,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,403 : 698,807.88 = 276,914.76 : x
  2. Step 2: Convert to fraction form
    506,403/698,807.88 = 276,914.76/x
  3. Step 3: Cross multiply
    506,403x = 698,807.88 × 276,914.76
  4. Step 4: Simplify right side
    506,403x = 193,510,216,376.31
  5. Step 5: Solve for x
    x = 193,510,216,376.31/506,403
  6. Step 6: Final answer
    x = 382,126.92

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1.5x scale

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.