Home / 786,912.30-1,180,368.45-313,937.10

Finding the Fourth Proportional to 786,912.30, 1,180,368.45 and 313,937.10

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Solution

The fourth proportional to 786,912.30, 1,180,368.45 and 313,937.10 is: 470,905.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,912.30 : 1,180,368.45 = 313,937.10 : x
  2. Step 2: Convert to fraction form
    786,912.30/1,180,368.45 = 313,937.10/x
  3. Step 3: Cross multiply
    786,912.30x = 1,180,368.45 × 313,937.10
  4. Step 4: Simplify right side
    786,912.30x = 370,561,448,124.50
  5. Step 5: Solve for x
    x = 370,561,448,124.50/786,912.30
  6. Step 6: Final answer
    x = 470,905.65

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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.