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Finding the Fourth Proportional to 571,436.80, 857,024.02 and 340,691.07

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Solution

The fourth proportional to 571,436.80, 857,024.02 and 340,691.07 is: 510,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,436.80 : 857,024.02 = 340,691.07 : x
  2. Step 2: Convert to fraction form
    571,436.80/857,024.02 = 340,691.07/x
  3. Step 3: Cross multiply
    571,436.80x = 857,024.02 × 340,691.07
  4. Step 4: Simplify right side
    571,436.80x = 291,980,430,389.50
  5. Step 5: Solve for x
    x = 291,980,430,389.50/571,436.80
  6. Step 6: Final answer
    x = 510,958.40

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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.