Home / 1,277,123.40-1,913,060.70-646,392.60

Finding the Fourth Proportional to 1,277,123.40, 1,913,060.70 and 646,392.60

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Solution

The fourth proportional to 1,277,123.40, 1,913,060.70 and 646,392.60 is: 968,260.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,123.40 : 1,913,060.70 = 646,392.60 : x
  2. Step 2: Convert to fraction form
    1,277,123.40/1,913,060.70 = 646,392.60/x
  3. Step 3: Cross multiply
    1,277,123.40x = 1,913,060.70 × 646,392.60
  4. Step 4: Simplify right side
    1,277,123.40x = 1,236,588,279,830.82
  5. Step 5: Solve for x
    x = 1,236,588,279,830.82/1,277,123.40
  6. Step 6: Final answer
    x = 968,260.61

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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.