Home / 779,085.76-1,170,683.55-419,522.46

Finding the Fourth Proportional to 779,085.76, 1,170,683.55 and 419,522.46

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Solution

The fourth proportional to 779,085.76, 1,170,683.55 and 419,522.46 is: 630,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,085.76 : 1,170,683.55 = 419,522.46 : x
  2. Step 2: Convert to fraction form
    779,085.76/1,170,683.55 = 419,522.46/x
  3. Step 3: Cross multiply
    779,085.76x = 1,170,683.55 × 419,522.46
  4. Step 4: Simplify right side
    779,085.76x = 491,128,042,777.53
  5. Step 5: Solve for x
    x = 491,128,042,777.53/779,085.76
  6. Step 6: Final answer
    x = 630,390.22

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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.