Home / 989,024.70-1,364,911.29-553,438.25

Finding the Fourth Proportional to 989,024.70, 1,364,911.29 and 553,438.25

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Solution

The fourth proportional to 989,024.70, 1,364,911.29 and 553,438.25 is: 763,776.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,024.70 : 1,364,911.29 = 553,438.25 : x
  2. Step 2: Convert to fraction form
    989,024.70/1,364,911.29 = 553,438.25/x
  3. Step 3: Cross multiply
    989,024.70x = 1,364,911.29 × 553,438.25
  4. Step 4: Simplify right side
    989,024.70x = 755,394,111,477.50
  5. Step 5: Solve for x
    x = 755,394,111,477.50/989,024.70
  6. Step 6: Final answer
    x = 763,776.79

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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.