Home / 405,043.20-607,511.52-105,545.52

Finding the Fourth Proportional to 405,043.20, 607,511.52 and 105,545.52

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Solution

The fourth proportional to 405,043.20, 607,511.52 and 105,545.52 is: 158,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,043.20 : 607,511.52 = 105,545.52 : x
  2. Step 2: Convert to fraction form
    405,043.20/607,511.52 = 105,545.52/x
  3. Step 3: Cross multiply
    405,043.20x = 607,511.52 × 105,545.52
  4. Step 4: Simplify right side
    405,043.20x = 64,120,119,284.39
  5. Step 5: Solve for x
    x = 64,120,119,284.39/405,043.20
  6. Step 6: Final answer
    x = 158,304.40

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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.