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Finding the Fourth Proportional to 502,389.38, 692,822.29 and 330,003.16

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Solution

The fourth proportional to 502,389.38, 692,822.29 and 330,003.16 is: 455,092.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,389.38 : 692,822.29 = 330,003.16 : x
  2. Step 2: Convert to fraction form
    502,389.38/692,822.29 = 330,003.16/x
  3. Step 3: Cross multiply
    502,389.38x = 692,822.29 × 330,003.16
  4. Step 4: Simplify right side
    502,389.38x = 228,633,545,018.44
  5. Step 5: Solve for x
    x = 228,633,545,018.44/502,389.38
  6. Step 6: Final answer
    x = 455,092.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.