Home / 1,340,400.83-1,849,765.55-728,555.00

Finding the Fourth Proportional to 1,340,400.83, 1,849,765.55 and 728,555.00

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Solution

The fourth proportional to 1,340,400.83, 1,849,765.55 and 728,555.00 is: 1,005,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,400.83 : 1,849,765.55 = 728,555.00 : x
  2. Step 2: Convert to fraction form
    1,340,400.83/1,849,765.55 = 728,555.00/x
  3. Step 3: Cross multiply
    1,340,400.83x = 1,849,765.55 × 728,555.00
  4. Step 4: Simplify right side
    1,340,400.83x = 1,347,655,927,388.65
  5. Step 5: Solve for x
    x = 1,347,655,927,388.65/1,340,400.83
  6. Step 6: Final answer
    x = 1,005,412.64

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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.