Home / 386,554.04-579,688.90-133,769.64

Finding the Fourth Proportional to 386,554.04, 579,688.90 and 133,769.64

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Solution

The fourth proportional to 386,554.04, 579,688.90 and 133,769.64 is: 200,605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,554.04 : 579,688.90 = 133,769.64 : x
  2. Step 2: Convert to fraction form
    386,554.04/579,688.90 = 133,769.64/x
  3. Step 3: Cross multiply
    386,554.04x = 579,688.90 × 133,769.64
  4. Step 4: Simplify right side
    386,554.04x = 77,544,775,465.00
  5. Step 5: Solve for x
    x = 77,544,775,465.00/386,554.04
  6. Step 6: Final answer
    x = 200,605.26

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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.