Home / 891,619.85-1,230,551.47-499,302.24

Finding the Fourth Proportional to 891,619.85, 1,230,551.47 and 499,302.24

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Solution

The fourth proportional to 891,619.85, 1,230,551.47 and 499,302.24 is: 689,102.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,619.85 : 1,230,551.47 = 499,302.24 : x
  2. Step 2: Convert to fraction form
    891,619.85/1,230,551.47 = 499,302.24/x
  3. Step 3: Cross multiply
    891,619.85x = 1,230,551.47 × 499,302.24
  4. Step 4: Simplify right side
    891,619.85x = 614,417,101,415.85
  5. Step 5: Solve for x
    x = 614,417,101,415.85/891,619.85
  6. Step 6: Final answer
    x = 689,102.09

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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.