Home / 559,836-772,849.48-387,884.36

Finding the Fourth Proportional to 559,836, 772,849.48 and 387,884.36

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Solution

The fourth proportional to 559,836, 772,849.48 and 387,884.36 is: 535,471.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,836 : 772,849.48 = 387,884.36 : x
  2. Step 2: Convert to fraction form
    559,836/772,849.48 = 387,884.36/x
  3. Step 3: Cross multiply
    559,836x = 772,849.48 × 387,884.36
  4. Step 4: Simplify right side
    559,836x = 299,776,225,926.13
  5. Step 5: Solve for x
    x = 299,776,225,926.13/559,836
  6. Step 6: Final answer
    x = 535,471.51

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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.