Home / 850,307.93-1,275,018.98-317,390.69

Finding the Fourth Proportional to 850,307.93, 1,275,018.98 and 317,390.69

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Solution

The fourth proportional to 850,307.93, 1,275,018.98 and 317,390.69 is: 475,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,307.93 : 1,275,018.98 = 317,390.69 : x
  2. Step 2: Convert to fraction form
    850,307.93/1,275,018.98 = 317,390.69/x
  3. Step 3: Cross multiply
    850,307.93x = 1,275,018.98 × 317,390.69
  4. Step 4: Simplify right side
    850,307.93x = 404,679,152,238.34
  5. Step 5: Solve for x
    x = 404,679,152,238.34/850,307.93
  6. Step 6: Final answer
    x = 475,920.71

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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.