Home / 971,521.07-1,340,241.50-631,865.39

Finding the Fourth Proportional to 971,521.07, 1,340,241.50 and 631,865.39

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Solution

The fourth proportional to 971,521.07, 1,340,241.50 and 631,865.39 is: 871,676.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,521.07 : 1,340,241.50 = 631,865.39 : x
  2. Step 2: Convert to fraction form
    971,521.07/1,340,241.50 = 631,865.39/x
  3. Step 3: Cross multiply
    971,521.07x = 1,340,241.50 × 631,865.39
  4. Step 4: Simplify right side
    971,521.07x = 846,852,208,231.15
  5. Step 5: Solve for x
    x = 846,852,208,231.15/971,521.07
  6. Step 6: Final answer
    x = 871,676.63

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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.