Home / 1,326,483.78-1,989,531.34-652,383.84

Finding the Fourth Proportional to 1,326,483.78, 1,989,531.34 and 652,383.84

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Solution

The fourth proportional to 1,326,483.78, 1,989,531.34 and 652,383.84 is: 978,480.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,483.78 : 1,989,531.34 = 652,383.84 : x
  2. Step 2: Convert to fraction form
    1,326,483.78/1,989,531.34 = 652,383.84/x
  3. Step 3: Cross multiply
    1,326,483.78x = 1,989,531.34 × 652,383.84
  4. Step 4: Simplify right side
    1,326,483.78x = 1,297,938,095,389.55
  5. Step 5: Solve for x
    x = 1,297,938,095,389.55/1,326,483.78
  6. Step 6: Final answer
    x = 978,480.19

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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.