Home / 551,917.50-761,646.87-313,453.50

Finding the Fourth Proportional to 551,917.50, 761,646.87 and 313,453.50

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Solution

The fourth proportional to 551,917.50, 761,646.87 and 313,453.50 is: 432,566.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,917.50 : 761,646.87 = 313,453.50 : x
  2. Step 2: Convert to fraction form
    551,917.50/761,646.87 = 313,453.50/x
  3. Step 3: Cross multiply
    551,917.50x = 761,646.87 × 313,453.50
  4. Step 4: Simplify right side
    551,917.50x = 238,740,877,165.55
  5. Step 5: Solve for x
    x = 238,740,877,165.55/551,917.50
  6. Step 6: Final answer
    x = 432,566.24

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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.