Home / 763,800.93-1,054,061.96-419,641.29

Finding the Fourth Proportional to 763,800.93, 1,054,061.96 and 419,641.29

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Solution

The fourth proportional to 763,800.93, 1,054,061.96 and 419,641.29 is: 579,114.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,800.93 : 1,054,061.96 = 419,641.29 : x
  2. Step 2: Convert to fraction form
    763,800.93/1,054,061.96 = 419,641.29/x
  3. Step 3: Cross multiply
    763,800.93x = 1,054,061.96 × 419,641.29
  4. Step 4: Simplify right side
    763,800.93x = 442,327,918,536.12
  5. Step 5: Solve for x
    x = 442,327,918,536.12/763,800.93
  6. Step 6: Final answer
    x = 579,114.14

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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.