Home / 602,579.45-831,531.69-330,640.58

Finding the Fourth Proportional to 602,579.45, 831,531.69 and 330,640.58

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Solution

The fourth proportional to 602,579.45, 831,531.69 and 330,640.58 is: 456,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,579.45 : 831,531.69 = 330,640.58 : x
  2. Step 2: Convert to fraction form
    602,579.45/831,531.69 = 330,640.58/x
  3. Step 3: Cross multiply
    602,579.45x = 831,531.69 × 330,640.58
  4. Step 4: Simplify right side
    602,579.45x = 274,938,122,348.81
  5. Step 5: Solve for x
    x = 274,938,122,348.81/602,579.45
  6. Step 6: Final answer
    x = 456,268.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.