Home / 920,084.92-1,380,345.64-288,998.74

Finding the Fourth Proportional to 920,084.92, 1,380,345.64 and 288,998.74

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Solution

The fourth proportional to 920,084.92, 1,380,345.64 and 288,998.74 is: 433,566.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,084.92 : 1,380,345.64 = 288,998.74 : x
  2. Step 2: Convert to fraction form
    920,084.92/1,380,345.64 = 288,998.74/x
  3. Step 3: Cross multiply
    920,084.92x = 1,380,345.64 × 288,998.74
  4. Step 4: Simplify right side
    920,084.92x = 398,918,150,724.49
  5. Step 5: Solve for x
    x = 398,918,150,724.49/920,084.92
  6. Step 6: Final answer
    x = 433,566.67

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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.