Home / 380,131.04-569,802.87-312,864.39

Finding the Fourth Proportional to 380,131.04, 569,802.87 and 312,864.39

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Solution

The fourth proportional to 380,131.04, 569,802.87 and 312,864.39 is: 468,972.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,131.04 : 569,802.87 = 312,864.39 : x
  2. Step 2: Convert to fraction form
    380,131.04/569,802.87 = 312,864.39/x
  3. Step 3: Cross multiply
    380,131.04x = 569,802.87 × 312,864.39
  4. Step 4: Simplify right side
    380,131.04x = 178,271,027,342.80
  5. Step 5: Solve for x
    x = 178,271,027,342.80/380,131.04
  6. Step 6: Final answer
    x = 468,972.56

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1.5x scale

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.