Home / 726,985.40-1,090,650.90-306,044.60

Finding the Fourth Proportional to 726,985.40, 1,090,650.90 and 306,044.60

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Solution

The fourth proportional to 726,985.40, 1,090,650.90 and 306,044.60 is: 459,139.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,985.40 : 1,090,650.90 = 306,044.60 : x
  2. Step 2: Convert to fraction form
    726,985.40/1,090,650.90 = 306,044.60/x
  3. Step 3: Cross multiply
    726,985.40x = 1,090,650.90 × 306,044.60
  4. Step 4: Simplify right side
    726,985.40x = 333,787,818,430.14
  5. Step 5: Solve for x
    x = 333,787,818,430.14/726,985.40
  6. Step 6: Final answer
    x = 459,139.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.