Home / 684,420.45-1,026,288.05-211,044.30

Finding the Fourth Proportional to 684,420.45, 1,026,288.05 and 211,044.30

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Solution

The fourth proportional to 684,420.45, 1,026,288.05 and 211,044.30 is: 316,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,420.45 : 1,026,288.05 = 211,044.30 : x
  2. Step 2: Convert to fraction form
    684,420.45/1,026,288.05 = 211,044.30/x
  3. Step 3: Cross multiply
    684,420.45x = 1,026,288.05 × 211,044.30
  4. Step 4: Simplify right side
    684,420.45x = 216,592,242,055.39
  5. Step 5: Solve for x
    x = 216,592,242,055.39/684,420.45
  6. Step 6: Final answer
    x = 316,460.80

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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.