Home / 989,749.80-1,365,870.60-537,040.80

Finding the Fourth Proportional to 989,749.80, 1,365,870.60 and 537,040.80

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Solution

The fourth proportional to 989,749.80, 1,365,870.60 and 537,040.80 is: 741,124.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,749.80 : 1,365,870.60 = 537,040.80 : x
  2. Step 2: Convert to fraction form
    989,749.80/1,365,870.60 = 537,040.80/x
  3. Step 3: Cross multiply
    989,749.80x = 1,365,870.60 × 537,040.80
  4. Step 4: Simplify right side
    989,749.80x = 733,528,239,720.48
  5. Step 5: Solve for x
    x = 733,528,239,720.48/989,749.80
  6. Step 6: Final answer
    x = 741,124.92

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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.