Home / 816,543.60-1,224,853.80-255,596.40

Finding the Fourth Proportional to 816,543.60, 1,224,853.80 and 255,596.40

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Solution

The fourth proportional to 816,543.60, 1,224,853.80 and 255,596.40 is: 383,406.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,543.60 : 1,224,853.80 = 255,596.40 : x
  2. Step 2: Convert to fraction form
    816,543.60/1,224,853.80 = 255,596.40/x
  3. Step 3: Cross multiply
    816,543.60x = 1,224,853.80 × 255,596.40
  4. Step 4: Simplify right side
    816,543.60x = 313,068,221,806.32
  5. Step 5: Solve for x
    x = 313,068,221,806.32/816,543.60
  6. Step 6: Final answer
    x = 383,406.62

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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.