Home / 1,113,920.31-1,536,946.47-630,485.40

Finding the Fourth Proportional to 1,113,920.31, 1,536,946.47 and 630,485.40

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Solution

The fourth proportional to 1,113,920.31, 1,536,946.47 and 630,485.40 is: 869,920.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,920.31 : 1,536,946.47 = 630,485.40 : x
  2. Step 2: Convert to fraction form
    1,113,920.31/1,536,946.47 = 630,485.40/x
  3. Step 3: Cross multiply
    1,113,920.31x = 1,536,946.47 × 630,485.40
  4. Step 4: Simplify right side
    1,113,920.31x = 969,022,309,916.54
  5. Step 5: Solve for x
    x = 969,022,309,916.54/1,113,920.31
  6. Step 6: Final answer
    x = 869,920.68

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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.