Home / 689,887.90-1,036,012.65-374,959.90

Finding the Fourth Proportional to 689,887.90, 1,036,012.65 and 374,959.90

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Solution

The fourth proportional to 689,887.90, 1,036,012.65 and 374,959.90 is: 563,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,887.90 : 1,036,012.65 = 374,959.90 : x
  2. Step 2: Convert to fraction form
    689,887.90/1,036,012.65 = 374,959.90/x
  3. Step 3: Cross multiply
    689,887.90x = 1,036,012.65 × 374,959.90
  4. Step 4: Simplify right side
    689,887.90x = 388,463,199,642.74
  5. Step 5: Solve for x
    x = 388,463,199,642.74/689,887.90
  6. Step 6: Final answer
    x = 563,081.62

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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.