Home / 989,394.48-1,365,371.64-536,688.72

Finding the Fourth Proportional to 989,394.48, 1,365,371.64 and 536,688.72

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Solution

The fourth proportional to 989,394.48, 1,365,371.64 and 536,688.72 is: 740,634.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,394.48 : 1,365,371.64 = 536,688.72 : x
  2. Step 2: Convert to fraction form
    989,394.48/1,365,371.64 = 536,688.72/x
  3. Step 3: Cross multiply
    989,394.48x = 1,365,371.64 × 536,688.72
  4. Step 4: Simplify right side
    989,394.48x = 732,779,557,795.90
  5. Step 5: Solve for x
    x = 732,779,557,795.90/989,394.48
  6. Step 6: Final answer
    x = 740,634.37

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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.