Home / 780,052.70-1,168,329.45-640,084.70

Finding the Fourth Proportional to 780,052.70, 1,168,329.45 and 640,084.70

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Solution

The fourth proportional to 780,052.70, 1,168,329.45 and 640,084.70 is: 958,691.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,052.70 : 1,168,329.45 = 640,084.70 : x
  2. Step 2: Convert to fraction form
    780,052.70/1,168,329.45 = 640,084.70/x
  3. Step 3: Cross multiply
    780,052.70x = 1,168,329.45 × 640,084.70
  4. Step 4: Simplify right side
    780,052.70x = 747,829,805,504.42
  5. Step 5: Solve for x
    x = 747,829,805,504.42/780,052.70
  6. Step 6: Final answer
    x = 958,691.39

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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.