Home / 877,048.55-1,315,572.87-212,200.55

Finding the Fourth Proportional to 877,048.55, 1,315,572.87 and 212,200.55

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Solution

The fourth proportional to 877,048.55, 1,315,572.87 and 212,200.55 is: 318,300.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,048.55 : 1,315,572.87 = 212,200.55 : x
  2. Step 2: Convert to fraction form
    877,048.55/1,315,572.87 = 212,200.55/x
  3. Step 3: Cross multiply
    877,048.55x = 1,315,572.87 × 212,200.55
  4. Step 4: Simplify right side
    877,048.55x = 279,165,285,518.08
  5. Step 5: Solve for x
    x = 279,165,285,518.08/877,048.55
  6. Step 6: Final answer
    x = 318,300.83

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Similar ratio
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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.