Home / 974,863.20-1,345,302-545,138.40

Finding the Fourth Proportional to 974,863.20, 1,345,302 and 545,138.40

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Solution

The fourth proportional to 974,863.20, 1,345,302 and 545,138.40 is: 752,285.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,863.20 : 1,345,302 = 545,138.40 : x
  2. Step 2: Convert to fraction form
    974,863.20/1,345,302 = 545,138.40/x
  3. Step 3: Cross multiply
    974,863.20x = 1,345,302 × 545,138.40
  4. Step 4: Simplify right side
    974,863.20x = 733,375,779,796.80
  5. Step 5: Solve for x
    x = 733,375,779,796.80/974,863.20
  6. Step 6: Final answer
    x = 752,285.84

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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.