Home / 1,276,367.72-1,761,387.47-703,407.89

Finding the Fourth Proportional to 1,276,367.72, 1,761,387.47 and 703,407.89

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Solution

The fourth proportional to 1,276,367.72, 1,761,387.47 and 703,407.89 is: 970,702.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,367.72 : 1,761,387.47 = 703,407.89 : x
  2. Step 2: Convert to fraction form
    1,276,367.72/1,761,387.47 = 703,407.89/x
  3. Step 3: Cross multiply
    1,276,367.72x = 1,761,387.47 × 703,407.89
  4. Step 4: Simplify right side
    1,276,367.72x = 1,238,973,834,058.94
  5. Step 5: Solve for x
    x = 1,238,973,834,058.94/1,276,367.72
  6. Step 6: Final answer
    x = 970,702.89

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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.