Home / 815,085.18-1,221,037.29-533,749.50

Finding the Fourth Proportional to 815,085.18, 1,221,037.29 and 533,749.50

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Solution

The fourth proportional to 815,085.18, 1,221,037.29 and 533,749.50 is: 799,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,085.18 : 1,221,037.29 = 533,749.50 : x
  2. Step 2: Convert to fraction form
    815,085.18/1,221,037.29 = 533,749.50/x
  3. Step 3: Cross multiply
    815,085.18x = 1,221,037.29 × 533,749.50
  4. Step 4: Simplify right side
    815,085.18x = 651,728,043,018.86
  5. Step 5: Solve for x
    x = 651,728,043,018.86/815,085.18
  6. Step 6: Final answer
    x = 799,582.74

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1.5x scale

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.