Home / 975,639.78-1,463,459.67-643,138.02

Finding the Fourth Proportional to 975,639.78, 1,463,459.67 and 643,138.02

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Solution

The fourth proportional to 975,639.78, 1,463,459.67 and 643,138.02 is: 964,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,639.78 : 1,463,459.67 = 643,138.02 : x
  2. Step 2: Convert to fraction form
    975,639.78/1,463,459.67 = 643,138.02/x
  3. Step 3: Cross multiply
    975,639.78x = 1,463,459.67 × 643,138.02
  4. Step 4: Simplify right side
    975,639.78x = 941,206,554,513.65
  5. Step 5: Solve for x
    x = 941,206,554,513.65/975,639.78
  6. Step 6: Final answer
    x = 964,707.03

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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.