Home / 478,931.19-717,583.82-288,992.46

Finding the Fourth Proportional to 478,931.19, 717,583.82 and 288,992.46

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Solution

The fourth proportional to 478,931.19, 717,583.82 and 288,992.46 is: 432,998.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,931.19 : 717,583.82 = 288,992.46 : x
  2. Step 2: Convert to fraction form
    478,931.19/717,583.82 = 288,992.46/x
  3. Step 3: Cross multiply
    478,931.19x = 717,583.82 × 288,992.46
  4. Step 4: Simplify right side
    478,931.19x = 207,376,315,914.44
  5. Step 5: Solve for x
    x = 207,376,315,914.44/478,931.19
  6. Step 6: Final answer
    x = 432,998.15

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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.