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Finding the Fourth Proportional to 660,090, 989,976.44 and 304,762.62

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Solution

The fourth proportional to 660,090, 989,976.44 and 304,762.62 is: 457,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,090 : 989,976.44 = 304,762.62 : x
  2. Step 2: Convert to fraction form
    660,090/989,976.44 = 304,762.62/x
  3. Step 3: Cross multiply
    660,090x = 989,976.44 × 304,762.62
  4. Step 4: Simplify right side
    660,090x = 301,707,813,592.67
  5. Step 5: Solve for x
    x = 301,707,813,592.67/660,090
  6. Step 6: Final answer
    x = 457,070.72

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