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Finding the Fourth Proportional to 571,486.60, 857,521.50 and 234,785.80

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Solution

The fourth proportional to 571,486.60, 857,521.50 and 234,785.80 is: 352,298.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,486.60 : 857,521.50 = 234,785.80 : x
  2. Step 2: Convert to fraction form
    571,486.60/857,521.50 = 234,785.80/x
  3. Step 3: Cross multiply
    571,486.60x = 857,521.50 × 234,785.80
  4. Step 4: Simplify right side
    571,486.60x = 201,333,871,394.70
  5. Step 5: Solve for x
    x = 201,333,871,394.70/571,486.60
  6. Step 6: Final answer
    x = 352,298.50

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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.