Home / 772,801.60-1,159,202.40-520,859.20

Finding the Fourth Proportional to 772,801.60, 1,159,202.40 and 520,859.20

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Solution

The fourth proportional to 772,801.60, 1,159,202.40 and 520,859.20 is: 781,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,801.60 : 1,159,202.40 = 520,859.20 : x
  2. Step 2: Convert to fraction form
    772,801.60/1,159,202.40 = 520,859.20/x
  3. Step 3: Cross multiply
    772,801.60x = 1,159,202.40 × 520,859.20
  4. Step 4: Simplify right side
    772,801.60x = 603,781,234,702.08
  5. Step 5: Solve for x
    x = 603,781,234,702.08/772,801.60
  6. Step 6: Final answer
    x = 781,288.80

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Double scale
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Similar ratio
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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.