Home / 726,756.60-1,090,005.30-460,039.80

Finding the Fourth Proportional to 726,756.60, 1,090,005.30 and 460,039.80

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Solution

The fourth proportional to 726,756.60, 1,090,005.30 and 460,039.80 is: 689,977.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,756.60 : 1,090,005.30 = 460,039.80 : x
  2. Step 2: Convert to fraction form
    726,756.60/1,090,005.30 = 460,039.80/x
  3. Step 3: Cross multiply
    726,756.60x = 1,090,005.30 × 460,039.80
  4. Step 4: Simplify right side
    726,756.60x = 501,445,820,210.94
  5. Step 5: Solve for x
    x = 501,445,820,210.94/726,756.60
  6. Step 6: Final answer
    x = 689,977.66

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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.