Home / 551,895.76-761,679.06-306,904.80

Finding the Fourth Proportional to 551,895.76, 761,679.06 and 306,904.80

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Solution

The fourth proportional to 551,895.76, 761,679.06 and 306,904.80 is: 423,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,895.76 : 761,679.06 = 306,904.80 : x
  2. Step 2: Convert to fraction form
    551,895.76/761,679.06 = 306,904.80/x
  3. Step 3: Cross multiply
    551,895.76x = 761,679.06 × 306,904.80
  4. Step 4: Simplify right side
    551,895.76x = 233,762,959,573.49
  5. Step 5: Solve for x
    x = 233,762,959,573.49/551,895.76
  6. Step 6: Final answer
    x = 423,563.61

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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.