Home / 1,309,098.60-1,963,259.10-509,920.20

Finding the Fourth Proportional to 1,309,098.60, 1,963,259.10 and 509,920.20

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Solution

The fourth proportional to 1,309,098.60, 1,963,259.10 and 509,920.20 is: 764,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,098.60 : 1,963,259.10 = 509,920.20 : x
  2. Step 2: Convert to fraction form
    1,309,098.60/1,963,259.10 = 509,920.20/x
  3. Step 3: Cross multiply
    1,309,098.60x = 1,963,259.10 × 509,920.20
  4. Step 4: Simplify right side
    1,309,098.60x = 1,001,105,472,923.82
  5. Step 5: Solve for x
    x = 1,001,105,472,923.82/1,309,098.60
  6. Step 6: Final answer
    x = 764,728.85

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Double scale
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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.