Home / 989,418.94-1,365,398.58-559,689.94

Finding the Fourth Proportional to 989,418.94, 1,365,398.58 and 559,689.94

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Solution

The fourth proportional to 989,418.94, 1,365,398.58 and 559,689.94 is: 772,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,418.94 : 1,365,398.58 = 559,689.94 : x
  2. Step 2: Convert to fraction form
    989,418.94/1,365,398.58 = 559,689.94/x
  3. Step 3: Cross multiply
    989,418.94x = 1,365,398.58 × 559,689.94
  4. Step 4: Simplify right side
    989,418.94x = 764,199,849,316.29
  5. Step 5: Solve for x
    x = 764,199,849,316.29/989,418.94
  6. Step 6: Final answer
    x = 772,372.37

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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.