Home / 645,029.10-968,576.40-513,007.20

Finding the Fourth Proportional to 645,029.10, 968,576.40 and 513,007.20

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Solution

The fourth proportional to 645,029.10, 968,576.40 and 513,007.20 is: 770,332.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,029.10 : 968,576.40 = 513,007.20 : x
  2. Step 2: Convert to fraction form
    645,029.10/968,576.40 = 513,007.20/x
  3. Step 3: Cross multiply
    645,029.10x = 968,576.40 × 513,007.20
  4. Step 4: Simplify right side
    645,029.10x = 496,886,666,950.08
  5. Step 5: Solve for x
    x = 496,886,666,950.08/645,029.10
  6. Step 6: Final answer
    x = 770,332.17

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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.