Home / 989,771.40-1,365,886.80-537,062.40

Finding the Fourth Proportional to 989,771.40, 1,365,886.80 and 537,062.40

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Solution

The fourth proportional to 989,771.40, 1,365,886.80 and 537,062.40 is: 741,147.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,771.40 : 1,365,886.80 = 537,062.40 : x
  2. Step 2: Convert to fraction form
    989,771.40/1,365,886.80 = 537,062.40/x
  3. Step 3: Cross multiply
    989,771.40x = 1,365,886.80 × 537,062.40
  4. Step 4: Simplify right side
    989,771.40x = 733,566,442,936.32
  5. Step 5: Solve for x
    x = 733,566,442,936.32/989,771.40
  6. Step 6: Final answer
    x = 741,147.34

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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.