Home / 770,708.04-1,156,040.38-209,747.40

Finding the Fourth Proportional to 770,708.04, 1,156,040.38 and 209,747.40

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Solution

The fourth proportional to 770,708.04, 1,156,040.38 and 209,747.40 is: 314,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,708.04 : 1,156,040.38 = 209,747.40 : x
  2. Step 2: Convert to fraction form
    770,708.04/1,156,040.38 = 209,747.40/x
  3. Step 3: Cross multiply
    770,708.04x = 1,156,040.38 × 209,747.40
  4. Step 4: Simplify right side
    770,708.04x = 242,476,464,000.01
  5. Step 5: Solve for x
    x = 242,476,464,000.01/770,708.04
  6. Step 6: Final answer
    x = 314,615.20

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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.