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Finding the Fourth Proportional to 807,712.90, 1,114,448.04 and 458,775.68

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Solution

The fourth proportional to 807,712.90, 1,114,448.04 and 458,775.68 is: 632,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,712.90 : 1,114,448.04 = 458,775.68 : x
  2. Step 2: Convert to fraction form
    807,712.90/1,114,448.04 = 458,775.68/x
  3. Step 3: Cross multiply
    807,712.90x = 1,114,448.04 × 458,775.68
  4. Step 4: Simplify right side
    807,712.90x = 511,281,657,375.67
  5. Step 5: Solve for x
    x = 511,281,657,375.67/807,712.90
  6. Step 6: Final answer
    x = 632,999.25

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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.