Home / 1,320,889.12-1,822,856.53-740,155.57

Finding the Fourth Proportional to 1,320,889.12, 1,822,856.53 and 740,155.57

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Solution

The fourth proportional to 1,320,889.12, 1,822,856.53 and 740,155.57 is: 1,021,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,889.12 : 1,822,856.53 = 740,155.57 : x
  2. Step 2: Convert to fraction form
    1,320,889.12/1,822,856.53 = 740,155.57/x
  3. Step 3: Cross multiply
    1,320,889.12x = 1,822,856.53 × 740,155.57
  4. Step 4: Simplify right side
    1,320,889.12x = 1,349,197,413,990.37
  5. Step 5: Solve for x
    x = 1,349,197,413,990.37/1,320,889.12
  6. Step 6: Final answer
    x = 1,021,431.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.