Home / 824,785.21-1,138,209.23-457,273.59

Finding the Fourth Proportional to 824,785.21, 1,138,209.23 and 457,273.59

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Solution

The fourth proportional to 824,785.21, 1,138,209.23 and 457,273.59 is: 631,040.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,785.21 : 1,138,209.23 = 457,273.59 : x
  2. Step 2: Convert to fraction form
    824,785.21/1,138,209.23 = 457,273.59/x
  3. Step 3: Cross multiply
    824,785.21x = 1,138,209.23 × 457,273.59
  4. Step 4: Simplify right side
    824,785.21x = 520,473,017,648.14
  5. Step 5: Solve for x
    x = 520,473,017,648.14/824,785.21
  6. Step 6: Final answer
    x = 631,040.68

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Double scale
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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.