Home / 1,122,203.20-1,683,541.50-363,985.78

Finding the Fourth Proportional to 1,122,203.20, 1,683,541.50 and 363,985.78

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Solution

The fourth proportional to 1,122,203.20, 1,683,541.50 and 363,985.78 is: 546,055.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,203.20 : 1,683,541.50 = 363,985.78 : x
  2. Step 2: Convert to fraction form
    1,122,203.20/1,683,541.50 = 363,985.78/x
  3. Step 3: Cross multiply
    1,122,203.20x = 1,683,541.50 × 363,985.78
  4. Step 4: Simplify right side
    1,122,203.20x = 612,785,166,039.87
  5. Step 5: Solve for x
    x = 612,785,166,039.87/1,122,203.20
  6. Step 6: Final answer
    x = 546,055.44

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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.