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Finding the Fourth Proportional to 570,607.62, 787,428.89 and 315,953.34

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Solution

The fourth proportional to 570,607.62, 787,428.89 and 315,953.34 is: 436,010.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,607.62 : 787,428.89 = 315,953.34 : x
  2. Step 2: Convert to fraction form
    570,607.62/787,428.89 = 315,953.34/x
  3. Step 3: Cross multiply
    570,607.62x = 787,428.89 × 315,953.34
  4. Step 4: Simplify right side
    570,607.62x = 248,790,787,807.99
  5. Step 5: Solve for x
    x = 248,790,787,807.99/570,607.62
  6. Step 6: Final answer
    x = 436,010.28

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1.5x scale

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.