Home / 1,591,390.85-2,387,062.87-393,313.28

Finding the Fourth Proportional to 1,591,390.85, 2,387,062.87 and 393,313.28

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Solution

The fourth proportional to 1,591,390.85, 2,387,062.87 and 393,313.28 is: 589,964.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591,390.85 : 2,387,062.87 = 393,313.28 : x
  2. Step 2: Convert to fraction form
    1,591,390.85/2,387,062.87 = 393,313.28/x
  3. Step 3: Cross multiply
    1,591,390.85x = 2,387,062.87 × 393,313.28
  4. Step 4: Simplify right side
    1,591,390.85x = 938,863,514,047.32
  5. Step 5: Solve for x
    x = 938,863,514,047.32/1,591,390.85
  6. Step 6: Final answer
    x = 589,964.13

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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.