Home / 687,166.08-1,030,732.12-266,442.04

Finding the Fourth Proportional to 687,166.08, 1,030,732.12 and 266,442.04

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Solution

The fourth proportional to 687,166.08, 1,030,732.12 and 266,442.04 is: 399,656.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,166.08 : 1,030,732.12 = 266,442.04 : x
  2. Step 2: Convert to fraction form
    687,166.08/1,030,732.12 = 266,442.04/x
  3. Step 3: Cross multiply
    687,166.08x = 1,030,732.12 × 266,442.04
  4. Step 4: Simplify right side
    687,166.08x = 274,630,368,746.33
  5. Step 5: Solve for x
    x = 274,630,368,746.33/687,166.08
  6. Step 6: Final answer
    x = 399,656.47

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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.