Home / 989,774.80-1,365,905.15-537,065.80

Finding the Fourth Proportional to 989,774.80, 1,365,905.15 and 537,065.80

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Solution

The fourth proportional to 989,774.80, 1,365,905.15 and 537,065.80 is: 741,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,774.80 : 1,365,905.15 = 537,065.80 : x
  2. Step 2: Convert to fraction form
    989,774.80/1,365,905.15 = 537,065.80/x
  3. Step 3: Cross multiply
    989,774.80x = 1,365,905.15 × 537,065.80
  4. Step 4: Simplify right side
    989,774.80x = 733,580,942,108.87
  5. Step 5: Solve for x
    x = 733,580,942,108.87/989,774.80
  6. Step 6: Final answer
    x = 741,159.45

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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.