Home / 559,835-772,848.10-387,883.36

Finding the Fourth Proportional to 559,835, 772,848.10 and 387,883.36

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Solution

The fourth proportional to 559,835, 772,848.10 and 387,883.36 is: 535,470.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,835 : 772,848.10 = 387,883.36 : x
  2. Step 2: Convert to fraction form
    559,835/772,848.10 = 387,883.36/x
  3. Step 3: Cross multiply
    559,835x = 772,848.10 × 387,883.36
  4. Step 4: Simplify right side
    559,835x = 299,774,917,797.62
  5. Step 5: Solve for x
    x = 299,774,917,797.62/559,835
  6. Step 6: Final answer
    x = 535,470.13

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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.