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Finding the Fourth Proportional to 1,749,854.86, 2,625,148.44 and 738,979.72

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Solution

The fourth proportional to 1,749,854.86, 2,625,148.44 and 738,979.72 is: 1,108,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749,854.86 : 2,625,148.44 = 738,979.72 : x
  2. Step 2: Convert to fraction form
    1,749,854.86/2,625,148.44 = 738,979.72/x
  3. Step 3: Cross multiply
    1,749,854.86x = 2,625,148.44 × 738,979.72
  4. Step 4: Simplify right side
    1,749,854.86x = 1,939,931,459,149.64
  5. Step 5: Solve for x
    x = 1,939,931,459,149.64/1,749,854.86
  6. Step 6: Final answer
    x = 1,108,624.21

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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.