Home / 1,113,825.55-1,536,815.80-630,390.68

Finding the Fourth Proportional to 1,113,825.55, 1,536,815.80 and 630,390.68

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Solution

The fourth proportional to 1,113,825.55, 1,536,815.80 and 630,390.68 is: 869,790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,825.55 : 1,536,815.80 = 630,390.68 : x
  2. Step 2: Convert to fraction form
    1,113,825.55/1,536,815.80 = 630,390.68/x
  3. Step 3: Cross multiply
    1,113,825.55x = 1,536,815.80 × 630,390.68
  4. Step 4: Simplify right side
    1,113,825.55x = 968,794,357,196.74
  5. Step 5: Solve for x
    x = 968,794,357,196.74/1,113,825.55
  6. Step 6: Final answer
    x = 869,790.03

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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.