Home / 757,812.80-1,137,640.80-569,345.60

Finding the Fourth Proportional to 757,812.80, 1,137,640.80 and 569,345.60

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Solution

The fourth proportional to 757,812.80, 1,137,640.80 and 569,345.60 is: 854,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,812.80 : 1,137,640.80 = 569,345.60 : x
  2. Step 2: Convert to fraction form
    757,812.80/1,137,640.80 = 569,345.60/x
  3. Step 3: Cross multiply
    757,812.80x = 1,137,640.80 × 569,345.60
  4. Step 4: Simplify right side
    757,812.80x = 647,710,783,860.48
  5. Step 5: Solve for x
    x = 647,710,783,860.48/757,812.80
  6. Step 6: Final answer
    x = 854,710.80

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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.