Home / 679,622.36-936,496.78-525,725.84

Finding the Fourth Proportional to 679,622.36, 936,496.78 and 525,725.84

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Solution

The fourth proportional to 679,622.36, 936,496.78 and 525,725.84 is: 724,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,622.36 : 936,496.78 = 525,725.84 : x
  2. Step 2: Convert to fraction form
    679,622.36/936,496.78 = 525,725.84/x
  3. Step 3: Cross multiply
    679,622.36x = 936,496.78 × 525,725.84
  4. Step 4: Simplify right side
    679,622.36x = 492,340,556,322.80
  5. Step 5: Solve for x
    x = 492,340,556,322.80/679,622.36
  6. Step 6: Final answer
    x = 724,432.55

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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.