Home / 789,314.70-1,183,194.45-390,017.10

Finding the Fourth Proportional to 789,314.70, 1,183,194.45 and 390,017.10

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Solution

The fourth proportional to 789,314.70, 1,183,194.45 and 390,017.10 is: 584,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,314.70 : 1,183,194.45 = 390,017.10 : x
  2. Step 2: Convert to fraction form
    789,314.70/1,183,194.45 = 390,017.10/x
  3. Step 3: Cross multiply
    789,314.70x = 1,183,194.45 × 390,017.10
  4. Step 4: Simplify right side
    789,314.70x = 461,466,068,125.10
  5. Step 5: Solve for x
    x = 461,466,068,125.10/789,314.70
  6. Step 6: Final answer
    x = 584,641.42

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Double scale
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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.