Home / 779,138.55-1,075,207.10-434,954.43

Finding the Fourth Proportional to 779,138.55, 1,075,207.10 and 434,954.43

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Solution

The fourth proportional to 779,138.55, 1,075,207.10 and 434,954.43 is: 600,234.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,138.55 : 1,075,207.10 = 434,954.43 : x
  2. Step 2: Convert to fraction form
    779,138.55/1,075,207.10 = 434,954.43/x
  3. Step 3: Cross multiply
    779,138.55x = 1,075,207.10 × 434,954.43
  4. Step 4: Simplify right side
    779,138.55x = 467,666,089,137.68
  5. Step 5: Solve for x
    x = 467,666,089,137.68/779,138.55
  6. Step 6: Final answer
    x = 600,234.82

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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.