Home / 643,192.08-963,501.72-386,883.16

Finding the Fourth Proportional to 643,192.08, 963,501.72 and 386,883.16

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Solution

The fourth proportional to 643,192.08, 963,501.72 and 386,883.16 is: 579,550.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,192.08 : 963,501.72 = 386,883.16 : x
  2. Step 2: Convert to fraction form
    643,192.08/963,501.72 = 386,883.16/x
  3. Step 3: Cross multiply
    643,192.08x = 963,501.72 × 386,883.16
  4. Step 4: Simplify right side
    643,192.08x = 372,762,590,099.04
  5. Step 5: Solve for x
    x = 372,762,590,099.04/643,192.08
  6. Step 6: Final answer
    x = 579,550.96

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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.