Home / 1,189,887.48-1,642,035.64-646,012.48

Finding the Fourth Proportional to 1,189,887.48, 1,642,035.64 and 646,012.48

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Solution

The fourth proportional to 1,189,887.48, 1,642,035.64 and 646,012.48 is: 891,492.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,887.48 : 1,642,035.64 = 646,012.48 : x
  2. Step 2: Convert to fraction form
    1,189,887.48/1,642,035.64 = 646,012.48/x
  3. Step 3: Cross multiply
    1,189,887.48x = 1,642,035.64 × 646,012.48
  4. Step 4: Simplify right side
    1,189,887.48x = 1,060,775,516,044.79
  5. Step 5: Solve for x
    x = 1,060,775,516,044.79/1,189,887.48
  6. Step 6: Final answer
    x = 891,492.29

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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.