Home / 815,430.76-1,125,331.82-452,856.22

Finding the Fourth Proportional to 815,430.76, 1,125,331.82 and 452,856.22

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Solution

The fourth proportional to 815,430.76, 1,125,331.82 and 452,856.22 is: 624,962.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,430.76 : 1,125,331.82 = 452,856.22 : x
  2. Step 2: Convert to fraction form
    815,430.76/1,125,331.82 = 452,856.22/x
  3. Step 3: Cross multiply
    815,430.76x = 1,125,331.82 × 452,856.22
  4. Step 4: Simplify right side
    815,430.76x = 509,613,511,986.64
  5. Step 5: Solve for x
    x = 509,613,511,986.64/815,430.76
  6. Step 6: Final answer
    x = 624,962.34

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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.