Home / 920,034.02-1,269,290.58-678,895.40

Finding the Fourth Proportional to 920,034.02, 1,269,290.58 and 678,895.40

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Solution

The fourth proportional to 920,034.02, 1,269,290.58 and 678,895.40 is: 936,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,034.02 : 1,269,290.58 = 678,895.40 : x
  2. Step 2: Convert to fraction form
    920,034.02/1,269,290.58 = 678,895.40/x
  3. Step 3: Cross multiply
    920,034.02x = 1,269,290.58 × 678,895.40
  4. Step 4: Simplify right side
    920,034.02x = 861,715,536,025.33
  5. Step 5: Solve for x
    x = 861,715,536,025.33/920,034.02
  6. Step 6: Final answer
    x = 936,612.69

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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.