Home / 1,013,938.61-1,397,744.55-771,799.44

Finding the Fourth Proportional to 1,013,938.61, 1,397,744.55 and 771,799.44

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Solution

The fourth proportional to 1,013,938.61, 1,397,744.55 and 771,799.44 is: 1,063,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,938.61 : 1,397,744.55 = 771,799.44 : x
  2. Step 2: Convert to fraction form
    1,013,938.61/1,397,744.55 = 771,799.44/x
  3. Step 3: Cross multiply
    1,013,938.61x = 1,397,744.55 × 771,799.44
  4. Step 4: Simplify right side
    1,013,938.61x = 1,078,778,450,105.33
  5. Step 5: Solve for x
    x = 1,078,778,450,105.33/1,013,938.61
  6. Step 6: Final answer
    x = 1,063,948.49

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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.