Home / 874,715.70-1,207,102.40-492,865.50

Finding the Fourth Proportional to 874,715.70, 1,207,102.40 and 492,865.50

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Solution

The fourth proportional to 874,715.70, 1,207,102.40 and 492,865.50 is: 680,151.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,715.70 : 1,207,102.40 = 492,865.50 : x
  2. Step 2: Convert to fraction form
    874,715.70/1,207,102.40 = 492,865.50/x
  3. Step 3: Cross multiply
    874,715.70x = 1,207,102.40 × 492,865.50
  4. Step 4: Simplify right side
    874,715.70x = 594,939,127,927.20
  5. Step 5: Solve for x
    x = 594,939,127,927.20/874,715.70
  6. Step 6: Final answer
    x = 680,151.42

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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.