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Finding the Fourth Proportional to 570,421.73, 787,225.71 and 325,411.88

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Solution

The fourth proportional to 570,421.73, 787,225.71 and 325,411.88 is: 449,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,421.73 : 787,225.71 = 325,411.88 : x
  2. Step 2: Convert to fraction form
    570,421.73/787,225.71 = 325,411.88/x
  3. Step 3: Cross multiply
    570,421.73x = 787,225.71 × 325,411.88
  4. Step 4: Simplify right side
    570,421.73x = 256,172,598,275.44
  5. Step 5: Solve for x
    x = 256,172,598,275.44/570,421.73
  6. Step 6: Final answer
    x = 449,093.34

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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.