Home / 784,709.40-1,177,064.10-385,606.20

Finding the Fourth Proportional to 784,709.40, 1,177,064.10 and 385,606.20

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Solution

The fourth proportional to 784,709.40, 1,177,064.10 and 385,606.20 is: 578,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,709.40 : 1,177,064.10 = 385,606.20 : x
  2. Step 2: Convert to fraction form
    784,709.40/1,177,064.10 = 385,606.20/x
  3. Step 3: Cross multiply
    784,709.40x = 1,177,064.10 × 385,606.20
  4. Step 4: Simplify right side
    784,709.40x = 453,883,214,757.42
  5. Step 5: Solve for x
    x = 453,883,214,757.42/784,709.40
  6. Step 6: Final answer
    x = 578,409.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.