Home / 879,270.35-1,318,216.49-347,189.65

Finding the Fourth Proportional to 879,270.35, 1,318,216.49 and 347,189.65

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Solution

The fourth proportional to 879,270.35, 1,318,216.49 and 347,189.65 is: 520,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,270.35 : 1,318,216.49 = 347,189.65 : x
  2. Step 2: Convert to fraction form
    879,270.35/1,318,216.49 = 347,189.65/x
  3. Step 3: Cross multiply
    879,270.35x = 1,318,216.49 × 347,189.65
  4. Step 4: Simplify right side
    879,270.35x = 457,671,113,460.30
  5. Step 5: Solve for x
    x = 457,671,113,460.30/879,270.35
  6. Step 6: Final answer
    x = 520,512.40

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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.