Home / 887,570.40-1,331,664.70-280,451.35

Finding the Fourth Proportional to 887,570.40, 1,331,664.70 and 280,451.35

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Solution

The fourth proportional to 887,570.40, 1,331,664.70 and 280,451.35 is: 420,774.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,570.40 : 1,331,664.70 = 280,451.35 : x
  2. Step 2: Convert to fraction form
    887,570.40/1,331,664.70 = 280,451.35/x
  3. Step 3: Cross multiply
    887,570.40x = 1,331,664.70 × 280,451.35
  4. Step 4: Simplify right side
    887,570.40x = 373,467,162,862.35
  5. Step 5: Solve for x
    x = 373,467,162,862.35/887,570.40
  6. Step 6: Final answer
    x = 420,774.69

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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.