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Finding the Fourth Proportional to 571,869.40, 857,220.90 and 335,090.20

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Solution

The fourth proportional to 571,869.40, 857,220.90 and 335,090.20 is: 502,293.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,869.40 : 857,220.90 = 335,090.20 : x
  2. Step 2: Convert to fraction form
    571,869.40/857,220.90 = 335,090.20/x
  3. Step 3: Cross multiply
    571,869.40x = 857,220.90 × 335,090.20
  4. Step 4: Simplify right side
    571,869.40x = 287,246,322,825.18
  5. Step 5: Solve for x
    x = 287,246,322,825.18/571,869.40
  6. Step 6: Final answer
    x = 502,293.57

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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.