Home / 929,478.90-1,394,218.35-828,002.10

Finding the Fourth Proportional to 929,478.90, 1,394,218.35 and 828,002.10

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Solution

The fourth proportional to 929,478.90, 1,394,218.35 and 828,002.10 is: 1,242,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,478.90 : 1,394,218.35 = 828,002.10 : x
  2. Step 2: Convert to fraction form
    929,478.90/1,394,218.35 = 828,002.10/x
  3. Step 3: Cross multiply
    929,478.90x = 1,394,218.35 × 828,002.10
  4. Step 4: Simplify right side
    929,478.90x = 1,154,415,721,658.54
  5. Step 5: Solve for x
    x = 1,154,415,721,658.54/929,478.90
  6. Step 6: Final answer
    x = 1,242,003.15

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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.