Home / 989,780.30-1,365,912.70-537,071.30

Finding the Fourth Proportional to 989,780.30, 1,365,912.70 and 537,071.30

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Solution

The fourth proportional to 989,780.30, 1,365,912.70 and 537,071.30 is: 741,167.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,780.30 : 1,365,912.70 = 537,071.30 : x
  2. Step 2: Convert to fraction form
    989,780.30/1,365,912.70 = 537,071.30/x
  3. Step 3: Cross multiply
    989,780.30x = 1,365,912.70 × 537,071.30
  4. Step 4: Simplify right side
    989,780.30x = 733,592,509,475.51
  5. Step 5: Solve for x
    x = 733,592,509,475.51/989,780.30
  6. Step 6: Final answer
    x = 741,167.01

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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.