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Finding the Fourth Proportional to 648,382.32, 971,523.72 and 490,918.32

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Solution

The fourth proportional to 648,382.32, 971,523.72 and 490,918.32 is: 735,582.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,382.32 : 971,523.72 = 490,918.32 : x
  2. Step 2: Convert to fraction form
    648,382.32/971,523.72 = 490,918.32/x
  3. Step 3: Cross multiply
    648,382.32x = 971,523.72 × 490,918.32
  4. Step 4: Simplify right side
    648,382.32x = 476,938,792,462.55
  5. Step 5: Solve for x
    x = 476,938,792,462.55/648,382.32
  6. Step 6: Final answer
    x = 735,582.66

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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.