Home / 578,972.40-868,458.60-357,788.40

Finding the Fourth Proportional to 578,972.40, 868,458.60 and 357,788.40

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Solution

The fourth proportional to 578,972.40, 868,458.60 and 357,788.40 is: 536,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,972.40 : 868,458.60 = 357,788.40 : x
  2. Step 2: Convert to fraction form
    578,972.40/868,458.60 = 357,788.40/x
  3. Step 3: Cross multiply
    578,972.40x = 868,458.60 × 357,788.40
  4. Step 4: Simplify right side
    578,972.40x = 310,724,412,960.24
  5. Step 5: Solve for x
    x = 310,724,412,960.24/578,972.40
  6. Step 6: Final answer
    x = 536,682.60

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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.