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Finding the Fourth Proportional to 335,983.40, 502,808.70 and 307,989.80

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Solution

The fourth proportional to 335,983.40, 502,808.70 and 307,989.80 is: 460,915.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,983.40 : 502,808.70 = 307,989.80 : x
  2. Step 2: Convert to fraction form
    335,983.40/502,808.70 = 307,989.80/x
  3. Step 3: Cross multiply
    335,983.40x = 502,808.70 × 307,989.80
  4. Step 4: Simplify right side
    335,983.40x = 154,859,950,951.26
  5. Step 5: Solve for x
    x = 154,859,950,951.26/335,983.40
  6. Step 6: Final answer
    x = 460,915.48

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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.