Home / 1,555,200.60-2,145,443.40-910,221.36

Finding the Fourth Proportional to 1,555,200.60, 2,145,443.40 and 910,221.36

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Solution

The fourth proportional to 1,555,200.60, 2,145,443.40 and 910,221.36 is: 1,255,676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,200.60 : 2,145,443.40 = 910,221.36 : x
  2. Step 2: Convert to fraction form
    1,555,200.60/2,145,443.40 = 910,221.36/x
  3. Step 3: Cross multiply
    1,555,200.60x = 2,145,443.40 × 910,221.36
  4. Step 4: Simplify right side
    1,555,200.60x = 1,952,828,409,351.02
  5. Step 5: Solve for x
    x = 1,952,828,409,351.02/1,555,200.60
  6. Step 6: Final answer
    x = 1,255,676.22

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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.