Home / 1,230,931.15-1,698,968.45-721,797.55

Finding the Fourth Proportional to 1,230,931.15, 1,698,968.45 and 721,797.55

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Solution

The fourth proportional to 1,230,931.15, 1,698,968.45 and 721,797.55 is: 996,246.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,931.15 : 1,698,968.45 = 721,797.55 : x
  2. Step 2: Convert to fraction form
    1,230,931.15/1,698,968.45 = 721,797.55/x
  3. Step 3: Cross multiply
    1,230,931.15x = 1,698,968.45 × 721,797.55
  4. Step 4: Simplify right side
    1,230,931.15x = 1,226,311,262,294.37
  5. Step 5: Solve for x
    x = 1,226,311,262,294.37/1,230,931.15
  6. Step 6: Final answer
    x = 996,246.84

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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.