Home / 877,056.34-1,315,584.52-212,208.34

Finding the Fourth Proportional to 877,056.34, 1,315,584.52 and 212,208.34

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Solution

The fourth proportional to 877,056.34, 1,315,584.52 and 212,208.34 is: 318,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,056.34 : 1,315,584.52 = 212,208.34 : x
  2. Step 2: Convert to fraction form
    877,056.34/1,315,584.52 = 212,208.34/x
  3. Step 3: Cross multiply
    877,056.34x = 1,315,584.52 × 212,208.34
  4. Step 4: Simplify right side
    877,056.34x = 279,178,007,118.90
  5. Step 5: Solve for x
    x = 279,178,007,118.90/877,056.34
  6. Step 6: Final answer
    x = 318,312.51

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Double scale
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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.