Home / 920,174.25-1,269,815.69-512,276.10

Finding the Fourth Proportional to 920,174.25, 1,269,815.69 and 512,276.10

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Solution

The fourth proportional to 920,174.25, 1,269,815.69 and 512,276.10 is: 706,927.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,174.25 : 1,269,815.69 = 512,276.10 : x
  2. Step 2: Convert to fraction form
    920,174.25/1,269,815.69 = 512,276.10/x
  3. Step 3: Cross multiply
    920,174.25x = 1,269,815.69 × 512,276.10
  4. Step 4: Simplify right side
    920,174.25x = 650,496,226,830.63
  5. Step 5: Solve for x
    x = 650,496,226,830.63/920,174.25
  6. Step 6: Final answer
    x = 706,927.22

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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.