Home / 1,230,970.77-1,699,023.06-721,837.17

Finding the Fourth Proportional to 1,230,970.77, 1,699,023.06 and 721,837.17

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Solution

The fourth proportional to 1,230,970.77, 1,699,023.06 and 721,837.17 is: 996,301.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,970.77 : 1,699,023.06 = 721,837.17 : x
  2. Step 2: Convert to fraction form
    1,230,970.77/1,699,023.06 = 721,837.17/x
  3. Step 3: Cross multiply
    1,230,970.77x = 1,699,023.06 × 721,837.17
  4. Step 4: Simplify right side
    1,230,970.77x = 1,226,417,997,395.14
  5. Step 5: Solve for x
    x = 1,226,417,997,395.14/1,230,970.77
  6. Step 6: Final answer
    x = 996,301.48

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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.