Home / 495,325.20-683,556.72-280,459.52

Finding the Fourth Proportional to 495,325.20, 683,556.72 and 280,459.52

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Solution

The fourth proportional to 495,325.20, 683,556.72 and 280,459.52 is: 387,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,325.20 : 683,556.72 = 280,459.52 : x
  2. Step 2: Convert to fraction form
    495,325.20/683,556.72 = 280,459.52/x
  3. Step 3: Cross multiply
    495,325.20x = 683,556.72 × 280,459.52
  4. Step 4: Simplify right side
    495,325.20x = 191,709,989,583.97
  5. Step 5: Solve for x
    x = 191,709,989,583.97/495,325.20
  6. Step 6: Final answer
    x = 387,038.64

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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.