Home / 405,298.08-607,982.76-105,776.28

Finding the Fourth Proportional to 405,298.08, 607,982.76 and 105,776.28

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Solution

The fourth proportional to 405,298.08, 607,982.76 and 105,776.28 is: 158,673.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,298.08 : 607,982.76 = 105,776.28 : x
  2. Step 2: Convert to fraction form
    405,298.08/607,982.76 = 105,776.28/x
  3. Step 3: Cross multiply
    405,298.08x = 607,982.76 × 105,776.28
  4. Step 4: Simplify right side
    405,298.08x = 64,310,154,656.93
  5. Step 5: Solve for x
    x = 64,310,154,656.93/405,298.08
  6. Step 6: Final answer
    x = 158,673.72

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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.