Home / 495,675.27-684,030.18-280,856.34

Finding the Fourth Proportional to 495,675.27, 684,030.18 and 280,856.34

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Solution

The fourth proportional to 495,675.27, 684,030.18 and 280,856.34 is: 387,580.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,675.27 : 684,030.18 = 280,856.34 : x
  2. Step 2: Convert to fraction form
    495,675.27/684,030.18 = 280,856.34/x
  3. Step 3: Cross multiply
    495,675.27x = 684,030.18 × 280,856.34
  4. Step 4: Simplify right side
    495,675.27x = 192,114,212,804.34
  5. Step 5: Solve for x
    x = 192,114,212,804.34/495,675.27
  6. Step 6: Final answer
    x = 387,580.79

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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.