Home / 780,021.70-1,170,032.55-360,117.70

Finding the Fourth Proportional to 780,021.70, 1,170,032.55 and 360,117.70

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Solution

The fourth proportional to 780,021.70, 1,170,032.55 and 360,117.70 is: 540,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,021.70 : 1,170,032.55 = 360,117.70 : x
  2. Step 2: Convert to fraction form
    780,021.70/1,170,032.55 = 360,117.70/x
  3. Step 3: Cross multiply
    780,021.70x = 1,170,032.55 × 360,117.70
  4. Step 4: Simplify right side
    780,021.70x = 421,349,430,831.14
  5. Step 5: Solve for x
    x = 421,349,430,831.14/780,021.70
  6. Step 6: Final answer
    x = 540,176.55

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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.