Home / 920,340.80-1,380,525.48-289,254.62

Finding the Fourth Proportional to 920,340.80, 1,380,525.48 and 289,254.62

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Solution

The fourth proportional to 920,340.80, 1,380,525.48 and 289,254.62 is: 433,886.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,340.80 : 1,380,525.48 = 289,254.62 : x
  2. Step 2: Convert to fraction form
    920,340.80/1,380,525.48 = 289,254.62/x
  3. Step 3: Cross multiply
    920,340.80x = 1,380,525.48 × 289,254.62
  4. Step 4: Simplify right side
    920,340.80x = 399,323,373,117.72
  5. Step 5: Solve for x
    x = 399,323,373,117.72/920,340.80
  6. Step 6: Final answer
    x = 433,886.42

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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.