Home / 1,386,012.30-2,079,018.45-938,114.70

Finding the Fourth Proportional to 1,386,012.30, 2,079,018.45 and 938,114.70

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Solution

The fourth proportional to 1,386,012.30, 2,079,018.45 and 938,114.70 is: 1,407,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,012.30 : 2,079,018.45 = 938,114.70 : x
  2. Step 2: Convert to fraction form
    1,386,012.30/2,079,018.45 = 938,114.70/x
  3. Step 3: Cross multiply
    1,386,012.30x = 2,079,018.45 × 938,114.70
  4. Step 4: Simplify right side
    1,386,012.30x = 1,950,357,769,516.22
  5. Step 5: Solve for x
    x = 1,950,357,769,516.22/1,386,012.30
  6. Step 6: Final answer
    x = 1,407,172.05

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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.