Home / 920,837.02-1,381,124.31-289,734.43

Finding the Fourth Proportional to 920,837.02, 1,381,124.31 and 289,734.43

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Solution

The fourth proportional to 920,837.02, 1,381,124.31 and 289,734.43 is: 434,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,837.02 : 1,381,124.31 = 289,734.43 : x
  2. Step 2: Convert to fraction form
    920,837.02/1,381,124.31 = 289,734.43/x
  3. Step 3: Cross multiply
    920,837.02x = 1,381,124.31 × 289,734.43
  4. Step 4: Simplify right side
    920,837.02x = 400,159,264,716.99
  5. Step 5: Solve for x
    x = 400,159,264,716.99/920,837.02
  6. Step 6: Final answer
    x = 434,560.36

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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.