Home / 286,539.24-429,812.10-86,858.04

Finding the Fourth Proportional to 286,539.24, 429,812.10 and 86,858.04

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Solution

The fourth proportional to 286,539.24, 429,812.10 and 86,858.04 is: 130,288.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,539.24 : 429,812.10 = 86,858.04 : x
  2. Step 2: Convert to fraction form
    286,539.24/429,812.10 = 86,858.04/x
  3. Step 3: Cross multiply
    286,539.24x = 429,812.10 × 86,858.04
  4. Step 4: Simplify right side
    286,539.24x = 37,332,636,574.28
  5. Step 5: Solve for x
    x = 37,332,636,574.28/286,539.24
  6. Step 6: Final answer
    x = 130,288.04

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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.