Home / 1,090,624.86-1,636,684.80-380,652.90

Finding the Fourth Proportional to 1,090,624.86, 1,636,684.80 and 380,652.90

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Solution

The fourth proportional to 1,090,624.86, 1,636,684.80 and 380,652.90 is: 571,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,624.86 : 1,636,684.80 = 380,652.90 : x
  2. Step 2: Convert to fraction form
    1,090,624.86/1,636,684.80 = 380,652.90/x
  3. Step 3: Cross multiply
    1,090,624.86x = 1,636,684.80 × 380,652.90
  4. Step 4: Simplify right side
    1,090,624.86x = 623,008,815,505.92
  5. Step 5: Solve for x
    x = 623,008,815,505.92/1,090,624.86
  6. Step 6: Final answer
    x = 571,240.25

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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.