Home / 805,090.90-1,207,782.15-404,724.10

Finding the Fourth Proportional to 805,090.90, 1,207,782.15 and 404,724.10

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Solution

The fourth proportional to 805,090.90, 1,207,782.15 and 404,724.10 is: 607,159.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,090.90 : 1,207,782.15 = 404,724.10 : x
  2. Step 2: Convert to fraction form
    805,090.90/1,207,782.15 = 404,724.10/x
  3. Step 3: Cross multiply
    805,090.90x = 1,207,782.15 × 404,724.10
  4. Step 4: Simplify right side
    805,090.90x = 488,818,543,654.82
  5. Step 5: Solve for x
    x = 488,818,543,654.82/805,090.90
  6. Step 6: Final answer
    x = 607,159.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.