Home / 767,115.54-1,151,289.63-346,428.18

Finding the Fourth Proportional to 767,115.54, 1,151,289.63 and 346,428.18

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Solution

The fourth proportional to 767,115.54, 1,151,289.63 and 346,428.18 is: 519,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,115.54 : 1,151,289.63 = 346,428.18 : x
  2. Step 2: Convert to fraction form
    767,115.54/1,151,289.63 = 346,428.18/x
  3. Step 3: Cross multiply
    767,115.54x = 1,151,289.63 × 346,428.18
  4. Step 4: Simplify right side
    767,115.54x = 398,839,171,173.77
  5. Step 5: Solve for x
    x = 398,839,171,173.77/767,115.54
  6. Step 6: Final answer
    x = 519,920.60

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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.