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Finding the Fourth Proportional to 590,802.69, 815,303.57 and 322,530.69

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Solution

The fourth proportional to 590,802.69, 815,303.57 and 322,530.69 is: 445,090.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,802.69 : 815,303.57 = 322,530.69 : x
  2. Step 2: Convert to fraction form
    590,802.69/815,303.57 = 322,530.69/x
  3. Step 3: Cross multiply
    590,802.69x = 815,303.57 × 322,530.69
  4. Step 4: Simplify right side
    590,802.69x = 262,960,421,378.91
  5. Step 5: Solve for x
    x = 262,960,421,378.91/590,802.69
  6. Step 6: Final answer
    x = 445,090.09

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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.