Home / 1,320,887.12-1,822,853.77-740,153.57

Finding the Fourth Proportional to 1,320,887.12, 1,822,853.77 and 740,153.57

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Solution

The fourth proportional to 1,320,887.12, 1,822,853.77 and 740,153.57 is: 1,021,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,887.12 : 1,822,853.77 = 740,153.57 : x
  2. Step 2: Convert to fraction form
    1,320,887.12/1,822,853.77 = 740,153.57/x
  3. Step 3: Cross multiply
    1,320,887.12x = 1,822,853.77 × 740,153.57
  4. Step 4: Simplify right side
    1,320,887.12x = 1,349,191,714,488.81
  5. Step 5: Solve for x
    x = 1,349,191,714,488.81/1,320,887.12
  6. Step 6: Final answer
    x = 1,021,428.48

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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.