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Finding the Fourth Proportional to 570,881.43, 787,814.24 and 316,227.15

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Solution

The fourth proportional to 570,881.43, 787,814.24 and 316,227.15 is: 436,392.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,881.43 : 787,814.24 = 316,227.15 : x
  2. Step 2: Convert to fraction form
    570,881.43/787,814.24 = 316,227.15/x
  3. Step 3: Cross multiply
    570,881.43x = 787,814.24 × 316,227.15
  4. Step 4: Simplify right side
    570,881.43x = 249,128,250,263.48
  5. Step 5: Solve for x
    x = 249,128,250,263.48/570,881.43
  6. Step 6: Final answer
    x = 436,392.28

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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.