Home / 570,625.48-787,463.10-315,976.66

Finding the Fourth Proportional to 570,625.48, 787,463.10 and 315,976.66

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Solution

The fourth proportional to 570,625.48, 787,463.10 and 315,976.66 is: 436,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,625.48 : 787,463.10 = 315,976.66 : x
  2. Step 2: Convert to fraction form
    570,625.48/787,463.10 = 315,976.66/x
  3. Step 3: Cross multiply
    570,625.48x = 787,463.10 × 315,976.66
  4. Step 4: Simplify right side
    570,625.48x = 248,819,960,211.25
  5. Step 5: Solve for x
    x = 248,819,960,211.25/570,625.48
  6. Step 6: Final answer
    x = 436,047.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.