Home / 1,445,814.18-2,169,464.86-688,514.40

Finding the Fourth Proportional to 1,445,814.18, 2,169,464.86 and 688,514.40

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Solution

The fourth proportional to 1,445,814.18, 2,169,464.86 and 688,514.40 is: 1,033,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,814.18 : 2,169,464.86 = 688,514.40 : x
  2. Step 2: Convert to fraction form
    1,445,814.18/2,169,464.86 = 688,514.40/x
  3. Step 3: Cross multiply
    1,445,814.18x = 2,169,464.86 × 688,514.40
  4. Step 4: Simplify right side
    1,445,814.18x = 1,493,707,796,403.98
  5. Step 5: Solve for x
    x = 1,493,707,796,403.98/1,445,814.18
  6. Step 6: Final answer
    x = 1,033,125.71

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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.