Home / 769,430.90-1,061,869.62-425,259.42

Finding the Fourth Proportional to 769,430.90, 1,061,869.62 and 425,259.42

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Solution

The fourth proportional to 769,430.90, 1,061,869.62 and 425,259.42 is: 586,888.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,430.90 : 1,061,869.62 = 425,259.42 : x
  2. Step 2: Convert to fraction form
    769,430.90/1,061,869.62 = 425,259.42/x
  3. Step 3: Cross multiply
    769,430.90x = 1,061,869.62 × 425,259.42
  4. Step 4: Simplify right side
    769,430.90x = 451,570,058,716.82
  5. Step 5: Solve for x
    x = 451,570,058,716.82/769,430.90
  6. Step 6: Final answer
    x = 586,888.39

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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.