Home / 828,399.32-1,240,606.05-472,333.85

Finding the Fourth Proportional to 828,399.32, 1,240,606.05 and 472,333.85

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Solution

The fourth proportional to 828,399.32, 1,240,606.05 and 472,333.85 is: 707,364.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,399.32 : 1,240,606.05 = 472,333.85 : x
  2. Step 2: Convert to fraction form
    828,399.32/1,240,606.05 = 472,333.85/x
  3. Step 3: Cross multiply
    828,399.32x = 1,240,606.05 × 472,333.85
  4. Step 4: Simplify right side
    828,399.32x = 585,980,231,929.79
  5. Step 5: Solve for x
    x = 585,980,231,929.79/828,399.32
  6. Step 6: Final answer
    x = 707,364.45

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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.