Home / 1,390,672.80-2,083,384.80-1,296,194.40

Finding the Fourth Proportional to 1,390,672.80, 2,083,384.80 and 1,296,194.40

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Solution

The fourth proportional to 1,390,672.80, 2,083,384.80 and 1,296,194.40 is: 1,941,845.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,672.80 : 2,083,384.80 = 1,296,194.40 : x
  2. Step 2: Convert to fraction form
    1,390,672.80/2,083,384.80 = 1,296,194.40/x
  3. Step 3: Cross multiply
    1,390,672.80x = 2,083,384.80 × 1,296,194.40
  4. Step 4: Simplify right side
    1,390,672.80x = 2,700,471,710,805.12
  5. Step 5: Solve for x
    x = 2,700,471,710,805.12/1,390,672.80
  6. Step 6: Final answer
    x = 1,941,845.49

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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.