Home / 930,078.71-1,283,409.20-522,225.38

Finding the Fourth Proportional to 930,078.71, 1,283,409.20 and 522,225.38

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Solution

The fourth proportional to 930,078.71, 1,283,409.20 and 522,225.38 is: 720,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,078.71 : 1,283,409.20 = 522,225.38 : x
  2. Step 2: Convert to fraction form
    930,078.71/1,283,409.20 = 522,225.38/x
  3. Step 3: Cross multiply
    930,078.71x = 1,283,409.20 × 522,225.38
  4. Step 4: Simplify right side
    930,078.71x = 670,228,848,137.32
  5. Step 5: Solve for x
    x = 670,228,848,137.32/930,078.71
  6. Step 6: Final answer
    x = 720,615.20

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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.