Home / 1,431,480.74-1,975,427.45-778,092.62

Finding the Fourth Proportional to 1,431,480.74, 1,975,427.45 and 778,092.62

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Solution

The fourth proportional to 1,431,480.74, 1,975,427.45 and 778,092.62 is: 1,073,759.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,480.74 : 1,975,427.45 = 778,092.62 : x
  2. Step 2: Convert to fraction form
    1,431,480.74/1,975,427.45 = 778,092.62/x
  3. Step 3: Cross multiply
    1,431,480.74x = 1,975,427.45 × 778,092.62
  4. Step 4: Simplify right side
    1,431,480.74x = 1,537,065,519,666.37
  5. Step 5: Solve for x
    x = 1,537,065,519,666.37/1,431,480.74
  6. Step 6: Final answer
    x = 1,073,759.13

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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.