Home / 1,278,430.58-1,916,258.67-630,455.54

Finding the Fourth Proportional to 1,278,430.58, 1,916,258.67 and 630,455.54

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Solution

The fourth proportional to 1,278,430.58, 1,916,258.67 and 630,455.54 is: 944,999.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,430.58 : 1,916,258.67 = 630,455.54 : x
  2. Step 2: Convert to fraction form
    1,278,430.58/1,916,258.67 = 630,455.54/x
  3. Step 3: Cross multiply
    1,278,430.58x = 1,916,258.67 × 630,455.54
  4. Step 4: Simplify right side
    1,278,430.58x = 1,208,115,894,574.53
  5. Step 5: Solve for x
    x = 1,208,115,894,574.53/1,278,430.58
  6. Step 6: Final answer
    x = 944,999.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.