Home / 700,401.34-1,048,917.78-399,971.35

Finding the Fourth Proportional to 700,401.34, 1,048,917.78 and 399,971.35

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Solution

The fourth proportional to 700,401.34, 1,048,917.78 and 399,971.35 is: 598,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,401.34 : 1,048,917.78 = 399,971.35 : x
  2. Step 2: Convert to fraction form
    700,401.34/1,048,917.78 = 399,971.35/x
  3. Step 3: Cross multiply
    700,401.34x = 1,048,917.78 × 399,971.35
  4. Step 4: Simplify right side
    700,401.34x = 419,537,060,505.60
  5. Step 5: Solve for x
    x = 419,537,060,505.60/700,401.34
  6. Step 6: Final answer
    x = 598,995.23

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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.