Home / 1,029,056.36-1,420,591.38-723,394.76

Finding the Fourth Proportional to 1,029,056.36, 1,420,591.38 and 723,394.76

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Solution

The fourth proportional to 1,029,056.36, 1,420,591.38 and 723,394.76 is: 998,631.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,056.36 : 1,420,591.38 = 723,394.76 : x
  2. Step 2: Convert to fraction form
    1,029,056.36/1,420,591.38 = 723,394.76/x
  3. Step 3: Cross multiply
    1,029,056.36x = 1,420,591.38 × 723,394.76
  4. Step 4: Simplify right side
    1,029,056.36x = 1,027,648,360,393.17
  5. Step 5: Solve for x
    x = 1,027,648,360,393.17/1,029,056.36
  6. Step 6: Final answer
    x = 998,631.76

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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.