Home / 1,262,337.96-1,742,032.80-689,378.13

Finding the Fourth Proportional to 1,262,337.96, 1,742,032.80 and 689,378.13

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Solution

The fourth proportional to 1,262,337.96, 1,742,032.80 and 689,378.13 is: 951,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,337.96 : 1,742,032.80 = 689,378.13 : x
  2. Step 2: Convert to fraction form
    1,262,337.96/1,742,032.80 = 689,378.13/x
  3. Step 3: Cross multiply
    1,262,337.96x = 1,742,032.80 × 689,378.13
  4. Step 4: Simplify right side
    1,262,337.96x = 1,200,919,314,062.66
  5. Step 5: Solve for x
    x = 1,200,919,314,062.66/1,262,337.96
  6. Step 6: Final answer
    x = 951,345.32

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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.