Home / 745,776.23-1,029,108.44-419,064.35

Finding the Fourth Proportional to 745,776.23, 1,029,108.44 and 419,064.35

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Solution

The fourth proportional to 745,776.23, 1,029,108.44 and 419,064.35 is: 578,273.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,776.23 : 1,029,108.44 = 419,064.35 : x
  2. Step 2: Convert to fraction form
    745,776.23/1,029,108.44 = 419,064.35/x
  3. Step 3: Cross multiply
    745,776.23x = 1,029,108.44 × 419,064.35
  4. Step 4: Simplify right side
    745,776.23x = 431,262,655,390.23
  5. Step 5: Solve for x
    x = 431,262,655,390.23/745,776.23
  6. Step 6: Final answer
    x = 578,273.54

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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.