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Finding the Fourth Proportional to 575,783.60, 863,675.40 and 442,923.35

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Solution

The fourth proportional to 575,783.60, 863,675.40 and 442,923.35 is: 664,385.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,783.60 : 863,675.40 = 442,923.35 : x
  2. Step 2: Convert to fraction form
    575,783.60/863,675.40 = 442,923.35/x
  3. Step 3: Cross multiply
    575,783.60x = 863,675.40 × 442,923.35
  4. Step 4: Simplify right side
    575,783.60x = 382,542,001,480.59
  5. Step 5: Solve for x
    x = 382,542,001,480.59/575,783.60
  6. Step 6: Final answer
    x = 664,385.03

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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.