Home / 872,467.84-1,204,048.32-490,614.40

Finding the Fourth Proportional to 872,467.84, 1,204,048.32 and 490,614.40

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Solution

The fourth proportional to 872,467.84, 1,204,048.32 and 490,614.40 is: 677,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,467.84 : 1,204,048.32 = 490,614.40 : x
  2. Step 2: Convert to fraction form
    872,467.84/1,204,048.32 = 490,614.40/x
  3. Step 3: Cross multiply
    872,467.84x = 1,204,048.32 × 490,614.40
  4. Step 4: Simplify right side
    872,467.84x = 590,723,444,087.81
  5. Step 5: Solve for x
    x = 590,723,444,087.81/872,467.84
  6. Step 6: Final answer
    x = 677,071.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.