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Finding the Fourth Proportional to 560,628.40, 840,942.60 and 462,213.40

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Solution

The fourth proportional to 560,628.40, 840,942.60 and 462,213.40 is: 693,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,628.40 : 840,942.60 = 462,213.40 : x
  2. Step 2: Convert to fraction form
    560,628.40/840,942.60 = 462,213.40/x
  3. Step 3: Cross multiply
    560,628.40x = 840,942.60 × 462,213.40
  4. Step 4: Simplify right side
    560,628.40x = 388,694,938,350.84
  5. Step 5: Solve for x
    x = 388,694,938,350.84/560,628.40
  6. Step 6: Final answer
    x = 693,320.10

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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.