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Finding the Fourth Proportional to 660,010.20, 989,496.90 and 364,522.20

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Solution

The fourth proportional to 660,010.20, 989,496.90 and 364,522.20 is: 546,496.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,010.20 : 989,496.90 = 364,522.20 : x
  2. Step 2: Convert to fraction form
    660,010.20/989,496.90 = 364,522.20/x
  3. Step 3: Cross multiply
    660,010.20x = 989,496.90 × 364,522.20
  4. Step 4: Simplify right side
    660,010.20x = 360,693,586,881.18
  5. Step 5: Solve for x
    x = 360,693,586,881.18/660,010.20
  6. Step 6: Final answer
    x = 546,496.99

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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.