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Finding the Fourth Proportional to 571,400.53, 788,528.32 and 313,274.39

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Solution

The fourth proportional to 571,400.53, 788,528.32 and 313,274.39 is: 432,316.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,400.53 : 788,528.32 = 313,274.39 : x
  2. Step 2: Convert to fraction form
    571,400.53/788,528.32 = 313,274.39/x
  3. Step 3: Cross multiply
    571,400.53x = 788,528.32 × 313,274.39
  4. Step 4: Simplify right side
    571,400.53x = 247,025,723,719.90
  5. Step 5: Solve for x
    x = 247,025,723,719.90/571,400.53
  6. Step 6: Final answer
    x = 432,316.23

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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.