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Finding the Fourth Proportional to 526,791.30, 789,020.55 and 433,479.30

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Solution

The fourth proportional to 526,791.30, 789,020.55 and 433,479.30 is: 649,259.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,791.30 : 789,020.55 = 433,479.30 : x
  2. Step 2: Convert to fraction form
    526,791.30/789,020.55 = 433,479.30/x
  3. Step 3: Cross multiply
    526,791.30x = 789,020.55 × 433,479.30
  4. Step 4: Simplify right side
    526,791.30x = 342,024,075,699.62
  5. Step 5: Solve for x
    x = 342,024,075,699.62/526,791.30
  6. Step 6: Final answer
    x = 649,259.16

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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.