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Finding the Fourth Proportional to 750,819, 1,036,130.22 and 411,288.60

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Solution

The fourth proportional to 750,819, 1,036,130.22 and 411,288.60 is: 567,578.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,819 : 1,036,130.22 = 411,288.60 : x
  2. Step 2: Convert to fraction form
    750,819/1,036,130.22 = 411,288.60/x
  3. Step 3: Cross multiply
    750,819x = 1,036,130.22 × 411,288.60
  4. Step 4: Simplify right side
    750,819x = 426,148,547,601.49
  5. Step 5: Solve for x
    x = 426,148,547,601.49/750,819
  6. Step 6: Final answer
    x = 567,578.27

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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.