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Finding the Fourth Proportional to 1,165,496.86, 1,748,495.40 and 660,299.86

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Solution

The fourth proportional to 1,165,496.86, 1,748,495.40 and 660,299.86 is: 990,591.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,496.86 : 1,748,495.40 = 660,299.86 : x
  2. Step 2: Convert to fraction form
    1,165,496.86/1,748,495.40 = 660,299.86/x
  3. Step 3: Cross multiply
    1,165,496.86x = 1,748,495.40 × 660,299.86
  4. Step 4: Simplify right side
    1,165,496.86x = 1,154,531,267,830.64
  5. Step 5: Solve for x
    x = 1,154,531,267,830.64/1,165,496.86
  6. Step 6: Final answer
    x = 990,591.49

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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.