Home / 649,289.93-973,787.27-312,120.14

Finding the Fourth Proportional to 649,289.93, 973,787.27 and 312,120.14

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Solution

The fourth proportional to 649,289.93, 973,787.27 and 312,120.14 is: 468,109.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,289.93 : 973,787.27 = 312,120.14 : x
  2. Step 2: Convert to fraction form
    649,289.93/973,787.27 = 312,120.14/x
  3. Step 3: Cross multiply
    649,289.93x = 973,787.27 × 312,120.14
  4. Step 4: Simplify right side
    649,289.93x = 303,938,612,613.08
  5. Step 5: Solve for x
    x = 303,938,612,613.08/649,289.93
  6. Step 6: Final answer
    x = 468,109.24

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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.