Home / 713,019.72-1,070,120.38-358,135.32

Finding the Fourth Proportional to 713,019.72, 1,070,120.38 and 358,135.32

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Solution

The fourth proportional to 713,019.72, 1,070,120.38 and 358,135.32 is: 537,499.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,019.72 : 1,070,120.38 = 358,135.32 : x
  2. Step 2: Convert to fraction form
    713,019.72/1,070,120.38 = 358,135.32/x
  3. Step 3: Cross multiply
    713,019.72x = 1,070,120.38 × 358,135.32
  4. Step 4: Simplify right side
    713,019.72x = 383,247,904,729.82
  5. Step 5: Solve for x
    x = 383,247,904,729.82/713,019.72
  6. Step 6: Final answer
    x = 537,499.73

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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.