Home / 877,081.80-1,315,622.70-212,233.80

Finding the Fourth Proportional to 877,081.80, 1,315,622.70 and 212,233.80

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Solution

The fourth proportional to 877,081.80, 1,315,622.70 and 212,233.80 is: 318,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,081.80 : 1,315,622.70 = 212,233.80 : x
  2. Step 2: Convert to fraction form
    877,081.80/1,315,622.70 = 212,233.80/x
  3. Step 3: Cross multiply
    877,081.80x = 1,315,622.70 × 212,233.80
  4. Step 4: Simplify right side
    877,081.80x = 279,219,604,987.26
  5. Step 5: Solve for x
    x = 279,219,604,987.26/877,081.80
  6. Step 6: Final answer
    x = 318,350.70

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1.5x scale

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.