Home / 813,235.41-1,122,289.47-450,625.35

Finding the Fourth Proportional to 813,235.41, 1,122,289.47 and 450,625.35

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Solution

The fourth proportional to 813,235.41, 1,122,289.47 and 450,625.35 is: 621,876.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,235.41 : 1,122,289.47 = 450,625.35 : x
  2. Step 2: Convert to fraction form
    813,235.41/1,122,289.47 = 450,625.35/x
  3. Step 3: Cross multiply
    813,235.41x = 1,122,289.47 × 450,625.35
  4. Step 4: Simplify right side
    813,235.41x = 505,732,085,220.06
  5. Step 5: Solve for x
    x = 505,732,085,220.06/813,235.41
  6. Step 6: Final answer
    x = 621,876.62

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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.