Home / 769,641.24-1,062,012.90-425,430.66

Finding the Fourth Proportional to 769,641.24, 1,062,012.90 and 425,430.66

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Solution

The fourth proportional to 769,641.24, 1,062,012.90 and 425,430.66 is: 587,043.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,641.24 : 1,062,012.90 = 425,430.66 : x
  2. Step 2: Convert to fraction form
    769,641.24/1,062,012.90 = 425,430.66/x
  3. Step 3: Cross multiply
    769,641.24x = 1,062,012.90 × 425,430.66
  4. Step 4: Simplify right side
    769,641.24x = 451,812,848,975.51
  5. Step 5: Solve for x
    x = 451,812,848,975.51/769,641.24
  6. Step 6: Final answer
    x = 587,043.45

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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.