Home / 780,025.40-1,170,038.10-360,121.40

Finding the Fourth Proportional to 780,025.40, 1,170,038.10 and 360,121.40

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Solution

The fourth proportional to 780,025.40, 1,170,038.10 and 360,121.40 is: 540,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,025.40 : 1,170,038.10 = 360,121.40 : x
  2. Step 2: Convert to fraction form
    780,025.40/1,170,038.10 = 360,121.40/x
  3. Step 3: Cross multiply
    780,025.40x = 1,170,038.10 × 360,121.40
  4. Step 4: Simplify right side
    780,025.40x = 421,355,758,625.34
  5. Step 5: Solve for x
    x = 421,355,758,625.34/780,025.40
  6. Step 6: Final answer
    x = 540,182.10

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Similar ratio
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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.