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Finding the Fourth Proportional to 828,008.10, 1,240,262.55 and 828,008.10

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Solution

The fourth proportional to 828,008.10, 1,240,262.55 and 828,008.10 is: 1,240,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,008.10 : 1,240,262.55 = 828,008.10 : x
  2. Step 2: Convert to fraction form
    828,008.10/1,240,262.55 = 828,008.10/x
  3. Step 3: Cross multiply
    828,008.10x = 1,240,262.55 × 828,008.10
  4. Step 4: Simplify right side
    828,008.10x = 1,026,947,437,526.66
  5. Step 5: Solve for x
    x = 1,026,947,437,526.66/828,008.10
  6. Step 6: Final answer
    x = 1,240,262.55

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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.