Home / 784,741.50-1,177,629.30-430,004.70

Finding the Fourth Proportional to 784,741.50, 1,177,629.30 and 430,004.70

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Solution

The fourth proportional to 784,741.50, 1,177,629.30 and 430,004.70 is: 645,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,741.50 : 1,177,629.30 = 430,004.70 : x
  2. Step 2: Convert to fraction form
    784,741.50/1,177,629.30 = 430,004.70/x
  3. Step 3: Cross multiply
    784,741.50x = 1,177,629.30 × 430,004.70
  4. Step 4: Simplify right side
    784,741.50x = 506,386,133,857.71
  5. Step 5: Solve for x
    x = 506,386,133,857.71/784,741.50
  6. Step 6: Final answer
    x = 645,290.37

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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.