Home / 783,150.09-1,078,725.60-553,308.39

Finding the Fourth Proportional to 783,150.09, 1,078,725.60 and 553,308.39

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Solution

The fourth proportional to 783,150.09, 1,078,725.60 and 553,308.39 is: 762,137.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,150.09 : 1,078,725.60 = 553,308.39 : x
  2. Step 2: Convert to fraction form
    783,150.09/1,078,725.60 = 553,308.39/x
  3. Step 3: Cross multiply
    783,150.09x = 1,078,725.60 × 553,308.39
  4. Step 4: Simplify right side
    783,150.09x = 596,867,924,987.78
  5. Step 5: Solve for x
    x = 596,867,924,987.78/783,150.09
  6. Step 6: Final answer
    x = 762,137.34

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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.