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Finding the Fourth Proportional to 570,540.94, 787,371.10 and 315,892.13

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Solution

The fourth proportional to 570,540.94, 787,371.10 and 315,892.13 is: 435,944.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,540.94 : 787,371.10 = 315,892.13 : x
  2. Step 2: Convert to fraction form
    570,540.94/787,371.10 = 315,892.13/x
  3. Step 3: Cross multiply
    570,540.94x = 787,371.10 × 315,892.13
  4. Step 4: Simplify right side
    570,540.94x = 248,724,329,152.86
  5. Step 5: Solve for x
    x = 248,724,329,152.86/570,540.94
  6. Step 6: Final answer
    x = 435,944.75

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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.