Home / 752,830.71-1,038,908.12-413,320.83

Finding the Fourth Proportional to 752,830.71, 1,038,908.12 and 413,320.83

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Solution

The fourth proportional to 752,830.71, 1,038,908.12 and 413,320.83 is: 570,383.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,830.71 : 1,038,908.12 = 413,320.83 : x
  2. Step 2: Convert to fraction form
    752,830.71/1,038,908.12 = 413,320.83/x
  3. Step 3: Cross multiply
    752,830.71x = 1,038,908.12 × 413,320.83
  4. Step 4: Simplify right side
    752,830.71x = 429,402,366,452.14
  5. Step 5: Solve for x
    x = 429,402,366,452.14/752,830.71
  6. Step 6: Final answer
    x = 570,383.70

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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.