Home / 683,706.80-1,026,483.60-399,688.40

Finding the Fourth Proportional to 683,706.80, 1,026,483.60 and 399,688.40

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Solution

The fourth proportional to 683,706.80, 1,026,483.60 and 399,688.40 is: 600,072.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,706.80 : 1,026,483.60 = 399,688.40 : x
  2. Step 2: Convert to fraction form
    683,706.80/1,026,483.60 = 399,688.40/x
  3. Step 3: Cross multiply
    683,706.80x = 1,026,483.60 × 399,688.40
  4. Step 4: Simplify right side
    683,706.80x = 410,273,587,710.24
  5. Step 5: Solve for x
    x = 410,273,587,710.24/683,706.80
  6. Step 6: Final answer
    x = 600,072.41

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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.