Home / 1,316,861.10-1,817,415.81-743,938.20

Finding the Fourth Proportional to 1,316,861.10, 1,817,415.81 and 743,938.20

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Solution

The fourth proportional to 1,316,861.10, 1,817,415.81 and 743,938.20 is: 1,026,718.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,861.10 : 1,817,415.81 = 743,938.20 : x
  2. Step 2: Convert to fraction form
    1,316,861.10/1,817,415.81 = 743,938.20/x
  3. Step 3: Cross multiply
    1,316,861.10x = 1,817,415.81 × 743,938.20
  4. Step 4: Simplify right side
    1,316,861.10x = 1,352,045,046,342.94
  5. Step 5: Solve for x
    x = 1,352,045,046,342.94/1,316,861.10
  6. Step 6: Final answer
    x = 1,026,718.04

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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.