Home / 1,129,879.17-1,559,263.70-664,765.51

Finding the Fourth Proportional to 1,129,879.17, 1,559,263.70 and 664,765.51

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Solution

The fourth proportional to 1,129,879.17, 1,559,263.70 and 664,765.51 is: 917,394.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,879.17 : 1,559,263.70 = 664,765.51 : x
  2. Step 2: Convert to fraction form
    1,129,879.17/1,559,263.70 = 664,765.51/x
  3. Step 3: Cross multiply
    1,129,879.17x = 1,559,263.70 × 664,765.51
  4. Step 4: Simplify right side
    1,129,879.17x = 1,036,544,724,856.83
  5. Step 5: Solve for x
    x = 1,036,544,724,856.83/1,129,879.17
  6. Step 6: Final answer
    x = 917,394.31

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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.