Home / 495,464.08-683,717.48-280,605.72

Finding the Fourth Proportional to 495,464.08, 683,717.48 and 280,605.72

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Solution

The fourth proportional to 495,464.08, 683,717.48 and 280,605.72 is: 387,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,464.08 : 683,717.48 = 280,605.72 : x
  2. Step 2: Convert to fraction form
    495,464.08/683,717.48 = 280,605.72/x
  3. Step 3: Cross multiply
    495,464.08x = 683,717.48 × 280,605.72
  4. Step 4: Simplify right side
    495,464.08x = 191,855,030,930.37
  5. Step 5: Solve for x
    x = 191,855,030,930.37/495,464.08
  6. Step 6: Final answer
    x = 387,222.89

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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.