Home / 778,876.03-1,075,418.53-503,396.97

Finding the Fourth Proportional to 778,876.03, 1,075,418.53 and 503,396.97

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Solution

The fourth proportional to 778,876.03, 1,075,418.53 and 503,396.97 is: 695,055.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,876.03 : 1,075,418.53 = 503,396.97 : x
  2. Step 2: Convert to fraction form
    778,876.03/1,075,418.53 = 503,396.97/x
  3. Step 3: Cross multiply
    778,876.03x = 1,075,418.53 × 503,396.97
  4. Step 4: Simplify right side
    778,876.03x = 541,362,430,742.35
  5. Step 5: Solve for x
    x = 541,362,430,742.35/778,876.03
  6. Step 6: Final answer
    x = 695,055.97

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1.5x scale

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.