Home / 690,896.06-1,036,926.35-291,823.23

Finding the Fourth Proportional to 690,896.06, 1,036,926.35 and 291,823.23

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Solution

The fourth proportional to 690,896.06, 1,036,926.35 and 291,823.23 is: 437,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,896.06 : 1,036,926.35 = 291,823.23 : x
  2. Step 2: Convert to fraction form
    690,896.06/1,036,926.35 = 291,823.23/x
  3. Step 3: Cross multiply
    690,896.06x = 1,036,926.35 × 291,823.23
  4. Step 4: Simplify right side
    690,896.06x = 302,599,196,729.11
  5. Step 5: Solve for x
    x = 302,599,196,729.11/690,896.06
  6. Step 6: Final answer
    x = 437,980.78

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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.