Home / 778,273.72-1,166,859.28-345,753.63

Finding the Fourth Proportional to 778,273.72, 1,166,859.28 and 345,753.63

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Solution

The fourth proportional to 778,273.72, 1,166,859.28 and 345,753.63 is: 518,385.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,273.72 : 1,166,859.28 = 345,753.63 : x
  2. Step 2: Convert to fraction form
    778,273.72/1,166,859.28 = 345,753.63/x
  3. Step 3: Cross multiply
    778,273.72x = 1,166,859.28 × 345,753.63
  4. Step 4: Simplify right side
    778,273.72x = 403,445,831,759.19
  5. Step 5: Solve for x
    x = 403,445,831,759.19/778,273.72
  6. Step 6: Final answer
    x = 518,385.53

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Double scale
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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.