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Finding the Fourth Proportional to 570,627.84, 787,466.24 and 315,978.96

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Solution

The fourth proportional to 570,627.84, 787,466.24 and 315,978.96 is: 436,050.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,627.84 : 787,466.24 = 315,978.96 : x
  2. Step 2: Convert to fraction form
    570,627.84/787,466.24 = 315,978.96/x
  3. Step 3: Cross multiply
    570,627.84x = 787,466.24 × 315,978.96
  4. Step 4: Simplify right side
    570,627.84x = 248,822,763,550.31
  5. Step 5: Solve for x
    x = 248,822,763,550.31/570,627.84
  6. Step 6: Final answer
    x = 436,050.87

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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.