Home / 780,312.85-1,170,469.24-219,347.35

Finding the Fourth Proportional to 780,312.85, 1,170,469.24 and 219,347.35

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Solution

The fourth proportional to 780,312.85, 1,170,469.24 and 219,347.35 is: 329,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,312.85 : 1,170,469.24 = 219,347.35 : x
  2. Step 2: Convert to fraction form
    780,312.85/1,170,469.24 = 219,347.35/x
  3. Step 3: Cross multiply
    780,312.85x = 1,170,469.24 × 219,347.35
  4. Step 4: Simplify right side
    780,312.85x = 256,739,326,050.51
  5. Step 5: Solve for x
    x = 256,739,326,050.51/780,312.85
  6. Step 6: Final answer
    x = 329,021.02

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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.