Home / 745,259.80-1,028,462.42-405,730.52

Finding the Fourth Proportional to 745,259.80, 1,028,462.42 and 405,730.52

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Solution

The fourth proportional to 745,259.80, 1,028,462.42 and 405,730.52 is: 559,910.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,259.80 : 1,028,462.42 = 405,730.52 : x
  2. Step 2: Convert to fraction form
    745,259.80/1,028,462.42 = 405,730.52/x
  3. Step 3: Cross multiply
    745,259.80x = 1,028,462.42 × 405,730.52
  4. Step 4: Simplify right side
    745,259.80x = 417,278,592,467.06
  5. Step 5: Solve for x
    x = 417,278,592,467.06/745,259.80
  6. Step 6: Final answer
    x = 559,910.24

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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.