Home / 390,341.04-585,511.76-109,858.29

Finding the Fourth Proportional to 390,341.04, 585,511.76 and 109,858.29

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Solution

The fourth proportional to 390,341.04, 585,511.76 and 109,858.29 is: 164,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,341.04 : 585,511.76 = 109,858.29 : x
  2. Step 2: Convert to fraction form
    390,341.04/585,511.76 = 109,858.29/x
  3. Step 3: Cross multiply
    390,341.04x = 585,511.76 × 109,858.29
  4. Step 4: Simplify right side
    390,341.04x = 64,323,320,728.49
  5. Step 5: Solve for x
    x = 64,323,320,728.49/390,341.04
  6. Step 6: Final answer
    x = 164,787.49

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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.