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Finding the Fourth Proportional to 570,421.23, 787,225.02 and 325,411.38

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Solution

The fourth proportional to 570,421.23, 787,225.02 and 325,411.38 is: 449,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,421.23 : 787,225.02 = 325,411.38 : x
  2. Step 2: Convert to fraction form
    570,421.23/787,225.02 = 325,411.38/x
  3. Step 3: Cross multiply
    570,421.23x = 787,225.02 × 325,411.38
  4. Step 4: Simplify right side
    570,421.23x = 256,171,980,128.73
  5. Step 5: Solve for x
    x = 256,171,980,128.73/570,421.23
  6. Step 6: Final answer
    x = 449,092.65

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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.