Home / 456,864.48-629,064.76-405,788.47

Finding the Fourth Proportional to 456,864.48, 629,064.76 and 405,788.47

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Solution

The fourth proportional to 456,864.48, 629,064.76 and 405,788.47 is: 558,737.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,864.48 : 629,064.76 = 405,788.47 : x
  2. Step 2: Convert to fraction form
    456,864.48/629,064.76 = 405,788.47/x
  3. Step 3: Cross multiply
    456,864.48x = 629,064.76 × 405,788.47
  4. Step 4: Simplify right side
    456,864.48x = 255,267,223,345.99
  5. Step 5: Solve for x
    x = 255,267,223,345.99/456,864.48
  6. Step 6: Final answer
    x = 558,737.29

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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.