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Finding the Fourth Proportional to 660,083.46, 989,966.73 and 304,756.14

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Solution

The fourth proportional to 660,083.46, 989,966.73 and 304,756.14 is: 457,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,083.46 : 989,966.73 = 304,756.14 : x
  2. Step 2: Convert to fraction form
    660,083.46/989,966.73 = 304,756.14/x
  3. Step 3: Cross multiply
    660,083.46x = 989,966.73 × 304,756.14
  4. Step 4: Simplify right side
    660,083.46x = 301,698,439,363.22
  5. Step 5: Solve for x
    x = 301,698,439,363.22/660,083.46
  6. Step 6: Final answer
    x = 457,061.05

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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.