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Finding the Fourth Proportional to 533,556.80, 736,406.88 and 342,808.64

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Solution

The fourth proportional to 533,556.80, 736,406.88 and 342,808.64 is: 473,139.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,556.80 : 736,406.88 = 342,808.64 : x
  2. Step 2: Convert to fraction form
    533,556.80/736,406.88 = 342,808.64/x
  3. Step 3: Cross multiply
    533,556.80x = 736,406.88 × 342,808.64
  4. Step 4: Simplify right side
    533,556.80x = 252,446,641,019.44
  5. Step 5: Solve for x
    x = 252,446,641,019.44/533,556.80
  6. Step 6: Final answer
    x = 473,139.21

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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.