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Finding the Fourth Proportional to 703,603.94, 971,077.64 and 445,504.86

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Solution

The fourth proportional to 703,603.94, 971,077.64 and 445,504.86 is: 614,862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,603.94 : 971,077.64 = 445,504.86 : x
  2. Step 2: Convert to fraction form
    703,603.94/971,077.64 = 445,504.86/x
  3. Step 3: Cross multiply
    703,603.94x = 971,077.64 × 445,504.86
  4. Step 4: Simplify right side
    703,603.94x = 432,619,805,829.81
  5. Step 5: Solve for x
    x = 432,619,805,829.81/703,603.94
  6. Step 6: Final answer
    x = 614,862.69

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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.