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Finding the Fourth Proportional to 495,762.85, 684,150.87 and 280,943.83

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Solution

The fourth proportional to 495,762.85, 684,150.87 and 280,943.83 is: 387,701.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,762.85 : 684,150.87 = 280,943.83 : x
  2. Step 2: Convert to fraction form
    495,762.85/684,150.87 = 280,943.83/x
  3. Step 3: Cross multiply
    495,762.85x = 684,150.87 × 280,943.83
  4. Step 4: Simplify right side
    495,762.85x = 192,207,965,715.63
  5. Step 5: Solve for x
    x = 192,207,965,715.63/495,762.85
  6. Step 6: Final answer
    x = 387,701.43

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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.