Home / 495,124.85-683,288.58-280,260.32

Finding the Fourth Proportional to 495,124.85, 683,288.58 and 280,260.32

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Solution

The fourth proportional to 495,124.85, 683,288.58 and 280,260.32 is: 386,768.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,124.85 : 683,288.58 = 280,260.32 : x
  2. Step 2: Convert to fraction form
    495,124.85/683,288.58 = 280,260.32/x
  3. Step 3: Cross multiply
    495,124.85x = 683,288.58 × 280,260.32
  4. Step 4: Simplify right side
    495,124.85x = 191,498,676,083.15
  5. Step 5: Solve for x
    x = 191,498,676,083.15/495,124.85
  6. Step 6: Final answer
    x = 386,768.46

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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.