Home / 763,075.18-1,143,741.97-307,374.55

Finding the Fourth Proportional to 763,075.18, 1,143,741.97 and 307,374.55

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Solution

The fourth proportional to 763,075.18, 1,143,741.97 and 307,374.55 is: 460,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,075.18 : 1,143,741.97 = 307,374.55 : x
  2. Step 2: Convert to fraction form
    763,075.18/1,143,741.97 = 307,374.55/x
  3. Step 3: Cross multiply
    763,075.18x = 1,143,741.97 × 307,374.55
  4. Step 4: Simplify right side
    763,075.18x = 351,557,170,869.73
  5. Step 5: Solve for x
    x = 351,557,170,869.73/763,075.18
  6. Step 6: Final answer
    x = 460,711.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.