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Finding the Fourth Proportional to 404,686.80, 607,030.20 and 298,398.60

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Solution

The fourth proportional to 404,686.80, 607,030.20 and 298,398.60 is: 447,597.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,686.80 : 607,030.20 = 298,398.60 : x
  2. Step 2: Convert to fraction form
    404,686.80/607,030.20 = 298,398.60/x
  3. Step 3: Cross multiply
    404,686.80x = 607,030.20 × 298,398.60
  4. Step 4: Simplify right side
    404,686.80x = 181,136,961,837.72
  5. Step 5: Solve for x
    x = 181,136,961,837.72/404,686.80
  6. Step 6: Final answer
    x = 447,597.90

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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.