Home / 899,192.31-1,240,870.73-491,285.39

Finding the Fourth Proportional to 899,192.31, 1,240,870.73 and 491,285.39

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Solution

The fourth proportional to 899,192.31, 1,240,870.73 and 491,285.39 is: 677,965.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,192.31 : 1,240,870.73 = 491,285.39 : x
  2. Step 2: Convert to fraction form
    899,192.31/1,240,870.73 = 491,285.39/x
  3. Step 3: Cross multiply
    899,192.31x = 1,240,870.73 × 491,285.39
  4. Step 4: Simplify right side
    899,192.31x = 609,621,651,866.85
  5. Step 5: Solve for x
    x = 609,621,651,866.85/899,192.31
  6. Step 6: Final answer
    x = 677,965.82

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1.5x scale

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.