Home / 502,976.40-693,985.93-319,147.95

Finding the Fourth Proportional to 502,976.40, 693,985.93 and 319,147.95

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Solution

The fourth proportional to 502,976.40, 693,985.93 and 319,147.95 is: 440,347.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,976.40 : 693,985.93 = 319,147.95 : x
  2. Step 2: Convert to fraction form
    502,976.40/693,985.93 = 319,147.95/x
  3. Step 3: Cross multiply
    502,976.40x = 693,985.93 × 319,147.95
  4. Step 4: Simplify right side
    502,976.40x = 221,484,186,888.34
  5. Step 5: Solve for x
    x = 221,484,186,888.34/502,976.40
  6. Step 6: Final answer
    x = 440,347.08

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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.