Home / 780,484.60-1,170,477.76-247,881.05

Finding the Fourth Proportional to 780,484.60, 1,170,477.76 and 247,881.05

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Solution

The fourth proportional to 780,484.60, 1,170,477.76 and 247,881.05 is: 371,742.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,484.60 : 1,170,477.76 = 247,881.05 : x
  2. Step 2: Convert to fraction form
    780,484.60/1,170,477.76 = 247,881.05/x
  3. Step 3: Cross multiply
    780,484.60x = 1,170,477.76 × 247,881.05
  4. Step 4: Simplify right side
    780,484.60x = 290,139,256,150.45
  5. Step 5: Solve for x
    x = 290,139,256,150.45/780,484.60
  6. Step 6: Final answer
    x = 371,742.45

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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.