Home / 1,107,389.70-1,660,998.15-433,340.10

Finding the Fourth Proportional to 1,107,389.70, 1,660,998.15 and 433,340.10

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Solution

The fourth proportional to 1,107,389.70, 1,660,998.15 and 433,340.10 is: 649,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,389.70 : 1,660,998.15 = 433,340.10 : x
  2. Step 2: Convert to fraction form
    1,107,389.70/1,660,998.15 = 433,340.10/x
  3. Step 3: Cross multiply
    1,107,389.70x = 1,660,998.15 × 433,340.10
  4. Step 4: Simplify right side
    1,107,389.70x = 719,777,104,420.82
  5. Step 5: Solve for x
    x = 719,777,104,420.82/1,107,389.70
  6. Step 6: Final answer
    x = 649,976.34

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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.