Home / 769,983.20-1,154,953.20-349,258.40

Finding the Fourth Proportional to 769,983.20, 1,154,953.20 and 349,258.40

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Solution

The fourth proportional to 769,983.20, 1,154,953.20 and 349,258.40 is: 523,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,983.20 : 1,154,953.20 = 349,258.40 : x
  2. Step 2: Convert to fraction form
    769,983.20/1,154,953.20 = 349,258.40/x
  3. Step 3: Cross multiply
    769,983.20x = 1,154,953.20 × 349,258.40
  4. Step 4: Simplify right side
    769,983.20x = 403,377,106,706.88
  5. Step 5: Solve for x
    x = 403,377,106,706.88/769,983.20
  6. Step 6: Final answer
    x = 523,877.80

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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.