Home / 649,120.32-973,680.84-424,669.32

Finding the Fourth Proportional to 649,120.32, 973,680.84 and 424,669.32

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Solution

The fourth proportional to 649,120.32, 973,680.84 and 424,669.32 is: 637,004.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,120.32 : 973,680.84 = 424,669.32 : x
  2. Step 2: Convert to fraction form
    649,120.32/973,680.84 = 424,669.32/x
  3. Step 3: Cross multiply
    649,120.32x = 973,680.84 × 424,669.32
  4. Step 4: Simplify right side
    649,120.32x = 413,492,380,219.83
  5. Step 5: Solve for x
    x = 413,492,380,219.83/649,120.32
  6. Step 6: Final answer
    x = 637,004.22

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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.