Home / 335,979.40-502,802.70-307,985.80

Finding the Fourth Proportional to 335,979.40, 502,802.70 and 307,985.80

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Solution

The fourth proportional to 335,979.40, 502,802.70 and 307,985.80 is: 460,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,979.40 : 502,802.70 = 307,985.80 : x
  2. Step 2: Convert to fraction form
    335,979.40/502,802.70 = 307,985.80/x
  3. Step 3: Cross multiply
    335,979.40x = 502,802.70 × 307,985.80
  4. Step 4: Simplify right side
    335,979.40x = 154,856,091,801.66
  5. Step 5: Solve for x
    x = 154,856,091,801.66/335,979.40
  6. Step 6: Final answer
    x = 460,909.48

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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.