Home / 969,326.75-1,453,316.81-429,288.75

Finding the Fourth Proportional to 969,326.75, 1,453,316.81 and 429,288.75

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Solution

The fourth proportional to 969,326.75, 1,453,316.81 and 429,288.75 is: 643,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,326.75 : 1,453,316.81 = 429,288.75 : x
  2. Step 2: Convert to fraction form
    969,326.75/1,453,316.81 = 429,288.75/x
  3. Step 3: Cross multiply
    969,326.75x = 1,453,316.81 × 429,288.75
  4. Step 4: Simplify right side
    969,326.75x = 623,892,556,718.89
  5. Step 5: Solve for x
    x = 623,892,556,718.89/969,326.75
  6. Step 6: Final answer
    x = 643,634.93

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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.