Home / 808,324.20-1,210,412.70-770,999.40

Finding the Fourth Proportional to 808,324.20, 1,210,412.70 and 770,999.40

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Solution

The fourth proportional to 808,324.20, 1,210,412.70 and 770,999.40 is: 1,154,521.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,324.20 : 1,210,412.70 = 770,999.40 : x
  2. Step 2: Convert to fraction form
    808,324.20/1,210,412.70 = 770,999.40/x
  3. Step 3: Cross multiply
    808,324.20x = 1,210,412.70 × 770,999.40
  4. Step 4: Simplify right side
    808,324.20x = 933,227,465,452.38
  5. Step 5: Solve for x
    x = 933,227,465,452.38/808,324.20
  6. Step 6: Final answer
    x = 1,154,521.25

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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.