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Finding the Fourth Proportional to 660,244.87, 989,697.30 and 375,346.87

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Solution

The fourth proportional to 660,244.87, 989,697.30 and 375,346.87 is: 562,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,244.87 : 989,697.30 = 375,346.87 : x
  2. Step 2: Convert to fraction form
    660,244.87/989,697.30 = 375,346.87/x
  3. Step 3: Cross multiply
    660,244.87x = 989,697.30 × 375,346.87
  4. Step 4: Simplify right side
    660,244.87x = 371,479,783,802.45
  5. Step 5: Solve for x
    x = 371,479,783,802.45/660,244.87
  6. Step 6: Final answer
    x = 562,639.41

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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.