Home / 554,739.50-831,970.05-155,276.78

Finding the Fourth Proportional to 554,739.50, 831,970.05 and 155,276.78

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Solution

The fourth proportional to 554,739.50, 831,970.05 and 155,276.78 is: 232,876.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,739.50 : 831,970.05 = 155,276.78 : x
  2. Step 2: Convert to fraction form
    554,739.50/831,970.05 = 155,276.78/x
  3. Step 3: Cross multiply
    554,739.50x = 831,970.05 × 155,276.78
  4. Step 4: Simplify right side
    554,739.50x = 129,185,630,420.44
  5. Step 5: Solve for x
    x = 129,185,630,420.44/554,739.50
  6. Step 6: Final answer
    x = 232,876.21

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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.