Home / 684,012.48-1,026,128.99-210,697.39

Finding the Fourth Proportional to 684,012.48, 1,026,128.99 and 210,697.39

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Solution

The fourth proportional to 684,012.48, 1,026,128.99 and 210,697.39 is: 316,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,012.48 : 1,026,128.99 = 210,697.39 : x
  2. Step 2: Convert to fraction form
    684,012.48/1,026,128.99 = 210,697.39/x
  3. Step 3: Cross multiply
    684,012.48x = 1,026,128.99 × 210,697.39
  4. Step 4: Simplify right side
    684,012.48x = 216,202,699,996.34
  5. Step 5: Solve for x
    x = 216,202,699,996.34/684,012.48
  6. Step 6: Final answer
    x = 316,080.05

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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.