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Finding the Fourth Proportional to 571,435.92, 857,022.71 and 340,690.20

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Solution

The fourth proportional to 571,435.92, 857,022.71 and 340,690.20 is: 510,957.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,435.92 : 857,022.71 = 340,690.20 : x
  2. Step 2: Convert to fraction form
    571,435.92/857,022.71 = 340,690.20/x
  3. Step 3: Cross multiply
    571,435.92x = 857,022.71 × 340,690.20
  4. Step 4: Simplify right side
    571,435.92x = 291,979,233,337.60
  5. Step 5: Solve for x
    x = 291,979,233,337.60/571,435.92
  6. Step 6: Final answer
    x = 510,957.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.