Home / 1,079,726.40-1,621,048.80-630,907.20

Finding the Fourth Proportional to 1,079,726.40, 1,621,048.80 and 630,907.20

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Solution

The fourth proportional to 1,079,726.40, 1,621,048.80 and 630,907.20 is: 947,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,726.40 : 1,621,048.80 = 630,907.20 : x
  2. Step 2: Convert to fraction form
    1,079,726.40/1,621,048.80 = 630,907.20/x
  3. Step 3: Cross multiply
    1,079,726.40x = 1,621,048.80 × 630,907.20
  4. Step 4: Simplify right side
    1,079,726.40x = 1,022,731,359,471.36
  5. Step 5: Solve for x
    x = 1,022,731,359,471.36/1,079,726.40
  6. Step 6: Final answer
    x = 947,213.44

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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.