Home / 742,585.14-1,112,379.54-342,670.32

Finding the Fourth Proportional to 742,585.14, 1,112,379.54 and 342,670.32

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Solution

The fourth proportional to 742,585.14, 1,112,379.54 and 342,670.32 is: 513,314.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,585.14 : 1,112,379.54 = 342,670.32 : x
  2. Step 2: Convert to fraction form
    742,585.14/1,112,379.54 = 342,670.32/x
  3. Step 3: Cross multiply
    742,585.14x = 1,112,379.54 × 342,670.32
  4. Step 4: Simplify right side
    742,585.14x = 381,179,452,933.25
  5. Step 5: Solve for x
    x = 381,179,452,933.25/742,585.14
  6. Step 6: Final answer
    x = 513,314.14

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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.