Home / 807,239.90-1,113,996.72-463,090.86

Finding the Fourth Proportional to 807,239.90, 1,113,996.72 and 463,090.86

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Solution

The fourth proportional to 807,239.90, 1,113,996.72 and 463,090.86 is: 639,068.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,239.90 : 1,113,996.72 = 463,090.86 : x
  2. Step 2: Convert to fraction form
    807,239.90/1,113,996.72 = 463,090.86/x
  3. Step 3: Cross multiply
    807,239.90x = 1,113,996.72 × 463,090.86
  4. Step 4: Simplify right side
    807,239.90x = 515,881,699,101.98
  5. Step 5: Solve for x
    x = 515,881,699,101.98/807,239.90
  6. Step 6: Final answer
    x = 639,068.63

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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.