Home / 469,053.28-647,325.88-285,363.51

Finding the Fourth Proportional to 469,053.28, 647,325.88 and 285,363.51

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Solution

The fourth proportional to 469,053.28, 647,325.88 and 285,363.51 is: 393,821.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,053.28 : 647,325.88 = 285,363.51 : x
  2. Step 2: Convert to fraction form
    469,053.28/647,325.88 = 285,363.51/x
  3. Step 3: Cross multiply
    469,053.28x = 647,325.88 × 285,363.51
  4. Step 4: Simplify right side
    469,053.28x = 184,723,182,089.76
  5. Step 5: Solve for x
    x = 184,723,182,089.76/469,053.28
  6. Step 6: Final answer
    x = 393,821.32

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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.