Home / 906,837.60-1,363,208.85-642,429.30

Finding the Fourth Proportional to 906,837.60, 1,363,208.85 and 642,429.30

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Solution

The fourth proportional to 906,837.60, 1,363,208.85 and 642,429.30 is: 965,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,837.60 : 1,363,208.85 = 642,429.30 : x
  2. Step 2: Convert to fraction form
    906,837.60/1,363,208.85 = 642,429.30/x
  3. Step 3: Cross multiply
    906,837.60x = 1,363,208.85 × 642,429.30
  4. Step 4: Simplify right side
    906,837.60x = 875,765,307,259.31
  5. Step 5: Solve for x
    x = 875,765,307,259.31/906,837.60
  6. Step 6: Final answer
    x = 965,735.55

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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.