Home / 1,122,543.34-1,683,612.70-323,628.60

Finding the Fourth Proportional to 1,122,543.34, 1,683,612.70 and 323,628.60

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Solution

The fourth proportional to 1,122,543.34, 1,683,612.70 and 323,628.60 is: 485,384.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,543.34 : 1,683,612.70 = 323,628.60 : x
  2. Step 2: Convert to fraction form
    1,122,543.34/1,683,612.70 = 323,628.60/x
  3. Step 3: Cross multiply
    1,122,543.34x = 1,683,612.70 × 323,628.60
  4. Step 4: Simplify right side
    1,122,543.34x = 544,865,221,043.22
  5. Step 5: Solve for x
    x = 544,865,221,043.22/1,122,543.34
  6. Step 6: Final answer
    x = 485,384.57

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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.