Home / 831,277.80-1,147,140.36-468,698.45

Finding the Fourth Proportional to 831,277.80, 1,147,140.36 and 468,698.45

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Solution

The fourth proportional to 831,277.80, 1,147,140.36 and 468,698.45 is: 646,790.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,277.80 : 1,147,140.36 = 468,698.45 : x
  2. Step 2: Convert to fraction form
    831,277.80/1,147,140.36 = 468,698.45/x
  3. Step 3: Cross multiply
    831,277.80x = 1,147,140.36 × 468,698.45
  4. Step 4: Simplify right side
    831,277.80x = 537,662,902,928.74
  5. Step 5: Solve for x
    x = 537,662,902,928.74/831,277.80
  6. Step 6: Final answer
    x = 646,790.88

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Double scale
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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.