Home / 772,671.70-1,159,007.55-520,729.30

Finding the Fourth Proportional to 772,671.70, 1,159,007.55 and 520,729.30

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Solution

The fourth proportional to 772,671.70, 1,159,007.55 and 520,729.30 is: 781,093.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,671.70 : 1,159,007.55 = 520,729.30 : x
  2. Step 2: Convert to fraction form
    772,671.70/1,159,007.55 = 520,729.30/x
  3. Step 3: Cross multiply
    772,671.70x = 1,159,007.55 × 520,729.30
  4. Step 4: Simplify right side
    772,671.70x = 603,529,190,206.22
  5. Step 5: Solve for x
    x = 603,529,190,206.22/772,671.70
  6. Step 6: Final answer
    x = 781,093.95

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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.