Home / 815,082.18-1,221,032.79-533,746.50

Finding the Fourth Proportional to 815,082.18, 1,221,032.79 and 533,746.50

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Solution

The fourth proportional to 815,082.18, 1,221,032.79 and 533,746.50 is: 799,578.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,082.18 : 1,221,032.79 = 533,746.50 : x
  2. Step 2: Convert to fraction form
    815,082.18/1,221,032.79 = 533,746.50/x
  3. Step 3: Cross multiply
    815,082.18x = 1,221,032.79 × 533,746.50
  4. Step 4: Simplify right side
    815,082.18x = 651,721,978,047.74
  5. Step 5: Solve for x
    x = 651,721,978,047.74/815,082.18
  6. Step 6: Final answer
    x = 799,578.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.