Home / 502,929.23-693,989.84-288,078.35

Finding the Fourth Proportional to 502,929.23, 693,989.84 and 288,078.35

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Solution

The fourth proportional to 502,929.23, 693,989.84 and 288,078.35 is: 397,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,929.23 : 693,989.84 = 288,078.35 : x
  2. Step 2: Convert to fraction form
    502,929.23/693,989.84 = 288,078.35/x
  3. Step 3: Cross multiply
    502,929.23x = 693,989.84 × 288,078.35
  4. Step 4: Simplify right side
    502,929.23x = 199,923,445,274.21
  5. Step 5: Solve for x
    x = 199,923,445,274.21/502,929.23
  6. Step 6: Final answer
    x = 397,518.05

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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.