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Finding the Fourth Proportional to 1,165,498.86, 1,748,498.40 and 660,301.86

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Solution

The fourth proportional to 1,165,498.86, 1,748,498.40 and 660,301.86 is: 990,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,498.86 : 1,748,498.40 = 660,301.86 : x
  2. Step 2: Convert to fraction form
    1,165,498.86/1,748,498.40 = 660,301.86/x
  3. Step 3: Cross multiply
    1,165,498.86x = 1,748,498.40 × 660,301.86
  4. Step 4: Simplify right side
    1,165,498.86x = 1,154,536,745,727.02
  5. Step 5: Solve for x
    x = 1,154,536,745,727.02/1,165,498.86
  6. Step 6: Final answer
    x = 990,594.49

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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.