Home / 1,818,157.80-2,509,074-1,002,390.40

Finding the Fourth Proportional to 1,818,157.80, 2,509,074 and 1,002,390.40

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Solution

The fourth proportional to 1,818,157.80, 2,509,074 and 1,002,390.40 is: 1,383,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818,157.80 : 2,509,074 = 1,002,390.40 : x
  2. Step 2: Convert to fraction form
    1,818,157.80/2,509,074 = 1,002,390.40/x
  3. Step 3: Cross multiply
    1,818,157.80x = 2,509,074 × 1,002,390.40
  4. Step 4: Simplify right side
    1,818,157.80x = 2,515,071,690,489.60
  5. Step 5: Solve for x
    x = 2,515,071,690,489.60/1,818,157.80
  6. Step 6: Final answer
    x = 1,383,307.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.