Home / 1,407,772.80-2,111,659.20-1,358,006.40

Finding the Fourth Proportional to 1,407,772.80, 2,111,659.20 and 1,358,006.40

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Solution

The fourth proportional to 1,407,772.80, 2,111,659.20 and 1,358,006.40 is: 2,037,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,772.80 : 2,111,659.20 = 1,358,006.40 : x
  2. Step 2: Convert to fraction form
    1,407,772.80/2,111,659.20 = 1,358,006.40/x
  3. Step 3: Cross multiply
    1,407,772.80x = 2,111,659.20 × 1,358,006.40
  4. Step 4: Simplify right side
    1,407,772.80x = 2,867,646,708,218.88
  5. Step 5: Solve for x
    x = 2,867,646,708,218.88/1,407,772.80
  6. Step 6: Final answer
    x = 2,037,009.60

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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.