Home / 879,092.95-1,318,632.02-687,128.85

Finding the Fourth Proportional to 879,092.95, 1,318,632.02 and 687,128.85

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Solution

The fourth proportional to 879,092.95, 1,318,632.02 and 687,128.85 is: 1,030,687.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,092.95 : 1,318,632.02 = 687,128.85 : x
  2. Step 2: Convert to fraction form
    879,092.95/1,318,632.02 = 687,128.85/x
  3. Step 3: Cross multiply
    879,092.95x = 1,318,632.02 × 687,128.85
  4. Step 4: Simplify right side
    879,092.95x = 906,070,097,200.81
  5. Step 5: Solve for x
    x = 906,070,097,200.81/879,092.95
  6. Step 6: Final answer
    x = 1,030,687.48

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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.