Home / 909,694.40-1,362,768.48-553,825.76

Finding the Fourth Proportional to 909,694.40, 1,362,768.48 and 553,825.76

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Solution

The fourth proportional to 909,694.40, 1,362,768.48 and 553,825.76 is: 829,659.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,694.40 : 1,362,768.48 = 553,825.76 : x
  2. Step 2: Convert to fraction form
    909,694.40/1,362,768.48 = 553,825.76/x
  3. Step 3: Cross multiply
    909,694.40x = 1,362,768.48 × 553,825.76
  4. Step 4: Simplify right side
    909,694.40x = 754,736,289,140.05
  5. Step 5: Solve for x
    x = 754,736,289,140.05/909,694.40
  6. Step 6: Final answer
    x = 829,659.16

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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.