Home / 1,029,913.40-1,544,985.30-319,935.80

Finding the Fourth Proportional to 1,029,913.40, 1,544,985.30 and 319,935.80

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Solution

The fourth proportional to 1,029,913.40, 1,544,985.30 and 319,935.80 is: 479,939.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,913.40 : 1,544,985.30 = 319,935.80 : x
  2. Step 2: Convert to fraction form
    1,029,913.40/1,544,985.30 = 319,935.80/x
  3. Step 3: Cross multiply
    1,029,913.40x = 1,544,985.30 × 319,935.80
  4. Step 4: Simplify right side
    1,029,913.40x = 494,296,107,943.74
  5. Step 5: Solve for x
    x = 494,296,107,943.74/1,029,913.40
  6. Step 6: Final answer
    x = 479,939.49

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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.