Home / 689,943.42-952,003.40-634,135.10

Finding the Fourth Proportional to 689,943.42, 952,003.40 and 634,135.10

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Solution

The fourth proportional to 689,943.42, 952,003.40 and 634,135.10 is: 874,997.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,943.42 : 952,003.40 = 634,135.10 : x
  2. Step 2: Convert to fraction form
    689,943.42/952,003.40 = 634,135.10/x
  3. Step 3: Cross multiply
    689,943.42x = 952,003.40 × 634,135.10
  4. Step 4: Simplify right side
    689,943.42x = 603,698,763,328.65
  5. Step 5: Solve for x
    x = 603,698,763,328.65/689,943.42
  6. Step 6: Final answer
    x = 874,997.49

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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.