Home / 756,850.86-1,044,987.78-485,617.50

Finding the Fourth Proportional to 756,850.86, 1,044,987.78 and 485,617.50

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Solution

The fourth proportional to 756,850.86, 1,044,987.78 and 485,617.50 is: 670,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,850.86 : 1,044,987.78 = 485,617.50 : x
  2. Step 2: Convert to fraction form
    756,850.86/1,044,987.78 = 485,617.50/x
  3. Step 3: Cross multiply
    756,850.86x = 1,044,987.78 × 485,617.50
  4. Step 4: Simplify right side
    756,850.86x = 507,464,353,254.15
  5. Step 5: Solve for x
    x = 507,464,353,254.15/756,850.86
  6. Step 6: Final answer
    x = 670,494.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.