Home / 780,014.13-1,170,021.19-189,038.13

Finding the Fourth Proportional to 780,014.13, 1,170,021.19 and 189,038.13

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Solution

The fourth proportional to 780,014.13, 1,170,021.19 and 189,038.13 is: 283,557.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,014.13 : 1,170,021.19 = 189,038.13 : x
  2. Step 2: Convert to fraction form
    780,014.13/1,170,021.19 = 189,038.13/x
  3. Step 3: Cross multiply
    780,014.13x = 1,170,021.19 × 189,038.13
  4. Step 4: Simplify right side
    780,014.13x = 221,178,617,817.98
  5. Step 5: Solve for x
    x = 221,178,617,817.98/780,014.13
  6. Step 6: Final answer
    x = 283,557.19

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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.