Home / 813,237.74-1,122,270.72-450,667.58

Finding the Fourth Proportional to 813,237.74, 1,122,270.72 and 450,667.58

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Solution

The fourth proportional to 813,237.74, 1,122,270.72 and 450,667.58 is: 621,922.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,237.74 : 1,122,270.72 = 450,667.58 : x
  2. Step 2: Convert to fraction form
    813,237.74/1,122,270.72 = 450,667.58/x
  3. Step 3: Cross multiply
    813,237.74x = 1,122,270.72 × 450,667.58
  4. Step 4: Simplify right side
    813,237.74x = 505,771,029,487.26
  5. Step 5: Solve for x
    x = 505,771,029,487.26/813,237.74
  6. Step 6: Final answer
    x = 621,922.72

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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.