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Finding the Fourth Proportional to 449,000.51, 618,206.24 and 380,876.27

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Solution

The fourth proportional to 449,000.51, 618,206.24 and 380,876.27 is: 524,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,000.51 : 618,206.24 = 380,876.27 : x
  2. Step 2: Convert to fraction form
    449,000.51/618,206.24 = 380,876.27/x
  3. Step 3: Cross multiply
    449,000.51x = 618,206.24 × 380,876.27
  4. Step 4: Simplify right side
    449,000.51x = 235,460,084,643.08
  5. Step 5: Solve for x
    x = 235,460,084,643.08/449,000.51
  6. Step 6: Final answer
    x = 524,409.40

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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.