Home / 570,429.14-787,201.56-312,301.80

Finding the Fourth Proportional to 570,429.14, 787,201.56 and 312,301.80

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Solution

The fourth proportional to 570,429.14, 787,201.56 and 312,301.80 is: 430,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,429.14 : 787,201.56 = 312,301.80 : x
  2. Step 2: Convert to fraction form
    570,429.14/787,201.56 = 312,301.80/x
  3. Step 3: Cross multiply
    570,429.14x = 787,201.56 × 312,301.80
  4. Step 4: Simplify right side
    570,429.14x = 245,844,464,150.81
  5. Step 5: Solve for x
    x = 245,844,464,150.81/570,429.14
  6. Step 6: Final answer
    x = 430,981.61

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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.