Home / 1,029,816.56-1,421,230.68-571,074.78

Finding the Fourth Proportional to 1,029,816.56, 1,421,230.68 and 571,074.78

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Solution

The fourth proportional to 1,029,816.56, 1,421,230.68 and 571,074.78 is: 788,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,816.56 : 1,421,230.68 = 571,074.78 : x
  2. Step 2: Convert to fraction form
    1,029,816.56/1,421,230.68 = 571,074.78/x
  3. Step 3: Cross multiply
    1,029,816.56x = 1,421,230.68 × 571,074.78
  4. Step 4: Simplify right side
    1,029,816.56x = 811,628,997,910.25
  5. Step 5: Solve for x
    x = 811,628,997,910.25/1,029,816.56
  6. Step 6: Final answer
    x = 788,129.68

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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.