Home / 1,272,698.51-1,756,308.47-947,464.61

Finding the Fourth Proportional to 1,272,698.51, 1,756,308.47 and 947,464.61

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Solution

The fourth proportional to 1,272,698.51, 1,756,308.47 and 947,464.61 is: 1,307,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,698.51 : 1,756,308.47 = 947,464.61 : x
  2. Step 2: Convert to fraction form
    1,272,698.51/1,756,308.47 = 947,464.61/x
  3. Step 3: Cross multiply
    1,272,698.51x = 1,756,308.47 × 947,464.61
  4. Step 4: Simplify right side
    1,272,698.51x = 1,664,040,114,830.92
  5. Step 5: Solve for x
    x = 1,664,040,114,830.92/1,272,698.51
  6. Step 6: Final answer
    x = 1,307,489.64

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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.