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Finding the Fourth Proportional to 495,763.86, 684,152.24 and 280,944.84

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Solution

The fourth proportional to 495,763.86, 684,152.24 and 280,944.84 is: 387,702.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,763.86 : 684,152.24 = 280,944.84 : x
  2. Step 2: Convert to fraction form
    495,763.86/684,152.24 = 280,944.84/x
  3. Step 3: Cross multiply
    495,763.86x = 684,152.24 × 280,944.84
  4. Step 4: Simplify right side
    495,763.86x = 192,209,041,602.44
  5. Step 5: Solve for x
    x = 192,209,041,602.44/495,763.86
  6. Step 6: Final answer
    x = 387,702.81

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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.