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Finding the Fourth Proportional to 975,911.16, 1,344,351.03 and 830,250.45

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Solution

The fourth proportional to 975,911.16, 1,344,351.03 and 830,250.45 is: 1,143,698.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,911.16 : 1,344,351.03 = 830,250.45 : x
  2. Step 2: Convert to fraction form
    975,911.16/1,344,351.03 = 830,250.45/x
  3. Step 3: Cross multiply
    975,911.16x = 1,344,351.03 × 830,250.45
  4. Step 4: Simplify right side
    975,911.16x = 1,116,148,047,615.46
  5. Step 5: Solve for x
    x = 1,116,148,047,615.46/975,911.16
  6. Step 6: Final answer
    x = 1,143,698.42

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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.