Home / 768,211.35-1,152,503.93-255,875.21

Finding the Fourth Proportional to 768,211.35, 1,152,503.93 and 255,875.21

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Solution

The fourth proportional to 768,211.35, 1,152,503.93 and 255,875.21 is: 383,875.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,211.35 : 1,152,503.93 = 255,875.21 : x
  2. Step 2: Convert to fraction form
    768,211.35/1,152,503.93 = 255,875.21/x
  3. Step 3: Cross multiply
    768,211.35x = 1,152,503.93 × 255,875.21
  4. Step 4: Simplify right side
    768,211.35x = 294,897,185,114.58
  5. Step 5: Solve for x
    x = 294,897,185,114.58/768,211.35
  6. Step 6: Final answer
    x = 383,875.07

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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.