Home / 335,982.40-502,807.20-307,988.80

Finding the Fourth Proportional to 335,982.40, 502,807.20 and 307,988.80

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Solution

The fourth proportional to 335,982.40, 502,807.20 and 307,988.80 is: 460,913.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,982.40 : 502,807.20 = 307,988.80 : x
  2. Step 2: Convert to fraction form
    335,982.40/502,807.20 = 307,988.80/x
  3. Step 3: Cross multiply
    335,982.40x = 502,807.20 × 307,988.80
  4. Step 4: Simplify right side
    335,982.40x = 154,858,986,159.36
  5. Step 5: Solve for x
    x = 154,858,986,159.36/335,982.40
  6. Step 6: Final answer
    x = 460,913.98

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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.