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Finding the Fourth Proportional to 324,140.40, 486,210.60 and 284,774.40

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Solution

The fourth proportional to 324,140.40, 486,210.60 and 284,774.40 is: 427,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,140.40 : 486,210.60 = 284,774.40 : x
  2. Step 2: Convert to fraction form
    324,140.40/486,210.60 = 284,774.40/x
  3. Step 3: Cross multiply
    324,140.40x = 486,210.60 × 284,774.40
  4. Step 4: Simplify right side
    324,140.40x = 138,460,331,888.64
  5. Step 5: Solve for x
    x = 138,460,331,888.64/324,140.40
  6. Step 6: Final answer
    x = 427,161.60

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1.5x scale

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.