Home / 1,335,285.60-2,000,206.80-828,290.40

Finding the Fourth Proportional to 1,335,285.60, 2,000,206.80 and 828,290.40

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Solution

The fourth proportional to 1,335,285.60, 2,000,206.80 and 828,290.40 is: 1,240,747.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,285.60 : 2,000,206.80 = 828,290.40 : x
  2. Step 2: Convert to fraction form
    1,335,285.60/2,000,206.80 = 828,290.40/x
  3. Step 3: Cross multiply
    1,335,285.60x = 2,000,206.80 × 828,290.40
  4. Step 4: Simplify right side
    1,335,285.60x = 1,656,752,090,454.72
  5. Step 5: Solve for x
    x = 1,656,752,090,454.72/1,335,285.60
  6. Step 6: Final answer
    x = 1,240,747.37

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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.