Home / 1,978,772.40-2,968,158.60-630,924.30

Finding the Fourth Proportional to 1,978,772.40, 2,968,158.60 and 630,924.30

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Solution

The fourth proportional to 1,978,772.40, 2,968,158.60 and 630,924.30 is: 946,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,772.40 : 2,968,158.60 = 630,924.30 : x
  2. Step 2: Convert to fraction form
    1,978,772.40/2,968,158.60 = 630,924.30/x
  3. Step 3: Cross multiply
    1,978,772.40x = 2,968,158.60 × 630,924.30
  4. Step 4: Simplify right side
    1,978,772.40x = 1,872,683,386,993.98
  5. Step 5: Solve for x
    x = 1,872,683,386,993.98/1,978,772.40
  6. Step 6: Final answer
    x = 946,386.45

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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.