Home / 780,103.95-1,170,155.93-360,199.95

Finding the Fourth Proportional to 780,103.95, 1,170,155.93 and 360,199.95

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Solution

The fourth proportional to 780,103.95, 1,170,155.93 and 360,199.95 is: 540,299.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,103.95 : 1,170,155.93 = 360,199.95 : x
  2. Step 2: Convert to fraction form
    780,103.95/1,170,155.93 = 360,199.95/x
  3. Step 3: Cross multiply
    780,103.95x = 1,170,155.93 × 360,199.95
  4. Step 4: Simplify right side
    780,103.95x = 421,490,105,677.20
  5. Step 5: Solve for x
    x = 421,490,105,677.20/780,103.95
  6. Step 6: Final answer
    x = 540,299.93

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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.