Home / 1,680,103.74-2,318,538.78-916,157.28

Finding the Fourth Proportional to 1,680,103.74, 2,318,538.78 and 916,157.28

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Solution

The fourth proportional to 1,680,103.74, 2,318,538.78 and 916,157.28 is: 1,264,294.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,103.74 : 2,318,538.78 = 916,157.28 : x
  2. Step 2: Convert to fraction form
    1,680,103.74/2,318,538.78 = 916,157.28/x
  3. Step 3: Cross multiply
    1,680,103.74x = 2,318,538.78 × 916,157.28
  4. Step 4: Simplify right side
    1,680,103.74x = 2,124,146,182,259.32
  5. Step 5: Solve for x
    x = 2,124,146,182,259.32/1,680,103.74
  6. Step 6: Final answer
    x = 1,264,294.66

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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.