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Finding the Fourth Proportional to 628,559.80, 942,839.70 and 565,574.20

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Solution

The fourth proportional to 628,559.80, 942,839.70 and 565,574.20 is: 848,361.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,559.80 : 942,839.70 = 565,574.20 : x
  2. Step 2: Convert to fraction form
    628,559.80/942,839.70 = 565,574.20/x
  3. Step 3: Cross multiply
    628,559.80x = 942,839.70 × 565,574.20
  4. Step 4: Simplify right side
    628,559.80x = 533,245,809,055.74
  5. Step 5: Solve for x
    x = 533,245,809,055.74/628,559.80
  6. Step 6: Final answer
    x = 848,361.30

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Double scale
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Similar ratio
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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.