Home / 742,589.14-1,112,385.54-342,674.32

Finding the Fourth Proportional to 742,589.14, 1,112,385.54 and 342,674.32

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Solution

The fourth proportional to 742,589.14, 1,112,385.54 and 342,674.32 is: 513,320.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,589.14 : 1,112,385.54 = 342,674.32 : x
  2. Step 2: Convert to fraction form
    742,589.14/1,112,385.54 = 342,674.32/x
  3. Step 3: Cross multiply
    742,589.14x = 1,112,385.54 × 342,674.32
  4. Step 4: Simplify right side
    742,589.14x = 381,185,958,497.33
  5. Step 5: Solve for x
    x = 381,185,958,497.33/742,589.14
  6. Step 6: Final answer
    x = 513,320.14

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1.5x scale

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.