Home / 887,687.33-1,224,983.90-500,499.36

Finding the Fourth Proportional to 887,687.33, 1,224,983.90 and 500,499.36

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Solution

The fourth proportional to 887,687.33, 1,224,983.90 and 500,499.36 is: 690,675.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,687.33 : 1,224,983.90 = 500,499.36 : x
  2. Step 2: Convert to fraction form
    887,687.33/1,224,983.90 = 500,499.36/x
  3. Step 3: Cross multiply
    887,687.33x = 1,224,983.90 × 500,499.36
  4. Step 4: Simplify right side
    887,687.33x = 613,103,655,457.81
  5. Step 5: Solve for x
    x = 613,103,655,457.81/887,687.33
  6. Step 6: Final answer
    x = 690,675.24

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1.5x scale

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.