Home / 726,780.10-1,090,364.55-516,828.10

Finding the Fourth Proportional to 726,780.10, 1,090,364.55 and 516,828.10

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Solution

The fourth proportional to 726,780.10, 1,090,364.55 and 516,828.10 is: 775,380.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,780.10 : 1,090,364.55 = 516,828.10 : x
  2. Step 2: Convert to fraction form
    726,780.10/1,090,364.55 = 516,828.10/x
  3. Step 3: Cross multiply
    726,780.10x = 1,090,364.55 × 516,828.10
  4. Step 4: Simplify right side
    726,780.10x = 563,531,038,683.86
  5. Step 5: Solve for x
    x = 563,531,038,683.86/726,780.10
  6. Step 6: Final answer
    x = 775,380.39

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1.5x scale

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.