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Finding the Fourth Proportional to 560,574.72, 840,361.98 and 205,505.80

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Solution

The fourth proportional to 560,574.72, 840,361.98 and 205,505.80 is: 308,075.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,574.72 : 840,361.98 = 205,505.80 : x
  2. Step 2: Convert to fraction form
    560,574.72/840,361.98 = 205,505.80/x
  3. Step 3: Cross multiply
    560,574.72x = 840,361.98 × 205,505.80
  4. Step 4: Simplify right side
    560,574.72x = 172,699,260,989.48
  5. Step 5: Solve for x
    x = 172,699,260,989.48/560,574.72
  6. Step 6: Final answer
    x = 308,075.36

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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.