Home / 984,628.18-1,358,503.45-640,969.89

Finding the Fourth Proportional to 984,628.18, 1,358,503.45 and 640,969.89

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Solution

The fourth proportional to 984,628.18, 1,358,503.45 and 640,969.89 is: 884,353.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,628.18 : 1,358,503.45 = 640,969.89 : x
  2. Step 2: Convert to fraction form
    984,628.18/1,358,503.45 = 640,969.89/x
  3. Step 3: Cross multiply
    984,628.18x = 1,358,503.45 × 640,969.89
  4. Step 4: Simplify right side
    984,628.18x = 870,759,806,911.12
  5. Step 5: Solve for x
    x = 870,759,806,911.12/984,628.18
  6. Step 6: Final answer
    x = 884,353.94

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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.