Home / 515,281.07-711,094.88-385,990.49

Finding the Fourth Proportional to 515,281.07, 711,094.88 and 385,990.49

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Solution

The fourth proportional to 515,281.07, 711,094.88 and 385,990.49 is: 532,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,281.07 : 711,094.88 = 385,990.49 : x
  2. Step 2: Convert to fraction form
    515,281.07/711,094.88 = 385,990.49/x
  3. Step 3: Cross multiply
    515,281.07x = 711,094.88 × 385,990.49
  4. Step 4: Simplify right side
    515,281.07x = 274,475,859,237.74
  5. Step 5: Solve for x
    x = 274,475,859,237.74/515,281.07
  6. Step 6: Final answer
    x = 532,672.12

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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.