Home / 1,207,931.10-1,811,896.65-459,879.90

Finding the Fourth Proportional to 1,207,931.10, 1,811,896.65 and 459,879.90

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Solution

The fourth proportional to 1,207,931.10, 1,811,896.65 and 459,879.90 is: 689,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,931.10 : 1,811,896.65 = 459,879.90 : x
  2. Step 2: Convert to fraction form
    1,207,931.10/1,811,896.65 = 459,879.90/x
  3. Step 3: Cross multiply
    1,207,931.10x = 1,811,896.65 × 459,879.90
  4. Step 4: Simplify right side
    1,207,931.10x = 833,254,850,212.34
  5. Step 5: Solve for x
    x = 833,254,850,212.34/1,207,931.10
  6. Step 6: Final answer
    x = 689,819.85

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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.