Home / 498,819.81-683,385.67-480,139.07

Finding the Fourth Proportional to 498,819.81, 683,385.67 and 480,139.07

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Solution

The fourth proportional to 498,819.81, 683,385.67 and 480,139.07 is: 657,792.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,819.81 : 683,385.67 = 480,139.07 : x
  2. Step 2: Convert to fraction form
    498,819.81/683,385.67 = 480,139.07/x
  3. Step 3: Cross multiply
    498,819.81x = 683,385.67 × 480,139.07
  4. Step 4: Simplify right side
    498,819.81x = 328,120,159,825.59
  5. Step 5: Solve for x
    x = 328,120,159,825.59/498,819.81
  6. Step 6: Final answer
    x = 657,792.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.