Home / 648,342.03-894,723.48-357,987.70

Finding the Fourth Proportional to 648,342.03, 894,723.48 and 357,987.70

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Solution

The fourth proportional to 648,342.03, 894,723.48 and 357,987.70 is: 494,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,342.03 : 894,723.48 = 357,987.70 : x
  2. Step 2: Convert to fraction form
    648,342.03/894,723.48 = 357,987.70/x
  3. Step 3: Cross multiply
    648,342.03x = 894,723.48 × 357,987.70
  4. Step 4: Simplify right side
    648,342.03x = 320,300,000,741.20
  5. Step 5: Solve for x
    x = 320,300,000,741.20/648,342.03
  6. Step 6: Final answer
    x = 494,029.36

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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.