Home / 1,339,427.60-2,009,465.40-392,829.20

Finding the Fourth Proportional to 1,339,427.60, 2,009,465.40 and 392,829.20

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Solution

The fourth proportional to 1,339,427.60, 2,009,465.40 and 392,829.20 is: 589,338.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,427.60 : 2,009,465.40 = 392,829.20 : x
  2. Step 2: Convert to fraction form
    1,339,427.60/2,009,465.40 = 392,829.20/x
  3. Step 3: Cross multiply
    1,339,427.60x = 2,009,465.40 × 392,829.20
  4. Step 4: Simplify right side
    1,339,427.60x = 789,376,685,509.68
  5. Step 5: Solve for x
    x = 789,376,685,509.68/1,339,427.60
  6. Step 6: Final answer
    x = 589,338.82

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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.