Home / 816,623.40-1,224,848.70-255,628.20

Finding the Fourth Proportional to 816,623.40, 1,224,848.70 and 255,628.20

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Solution

The fourth proportional to 816,623.40, 1,224,848.70 and 255,628.20 is: 383,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,623.40 : 1,224,848.70 = 255,628.20 : x
  2. Step 2: Convert to fraction form
    816,623.40/1,224,848.70 = 255,628.20/x
  3. Step 3: Cross multiply
    816,623.40x = 1,224,848.70 × 255,628.20
  4. Step 4: Simplify right side
    816,623.40x = 313,105,868,453.34
  5. Step 5: Solve for x
    x = 313,105,868,453.34/816,623.40
  6. Step 6: Final answer
    x = 383,415.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.