Home / 492,557.83-738,836.74-380,401.63

Finding the Fourth Proportional to 492,557.83, 738,836.74 and 380,401.63

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Solution

The fourth proportional to 492,557.83, 738,836.74 and 380,401.63 is: 570,602.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,557.83 : 738,836.74 = 380,401.63 : x
  2. Step 2: Convert to fraction form
    492,557.83/738,836.74 = 380,401.63/x
  3. Step 3: Cross multiply
    492,557.83x = 738,836.74 × 380,401.63
  4. Step 4: Simplify right side
    492,557.83x = 281,054,700,199.89
  5. Step 5: Solve for x
    x = 281,054,700,199.89/492,557.83
  6. Step 6: Final answer
    x = 570,602.44

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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.