Home / 1,207,479.15-1,811,280.69-308,928.63

Finding the Fourth Proportional to 1,207,479.15, 1,811,280.69 and 308,928.63

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Solution

The fourth proportional to 1,207,479.15, 1,811,280.69 and 308,928.63 is: 463,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,479.15 : 1,811,280.69 = 308,928.63 : x
  2. Step 2: Convert to fraction form
    1,207,479.15/1,811,280.69 = 308,928.63/x
  3. Step 3: Cross multiply
    1,207,479.15x = 1,811,280.69 × 308,928.63
  4. Step 4: Simplify right side
    1,207,479.15x = 559,556,468,899.46
  5. Step 5: Solve for x
    x = 559,556,468,899.46/1,207,479.15
  6. Step 6: Final answer
    x = 463,408.80

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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.