Home / 912,893.51-1,369,464.87-380,289.96

Finding the Fourth Proportional to 912,893.51, 1,369,464.87 and 380,289.96

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Solution

The fourth proportional to 912,893.51, 1,369,464.87 and 380,289.96 is: 570,486.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,893.51 : 1,369,464.87 = 380,289.96 : x
  2. Step 2: Convert to fraction form
    912,893.51/1,369,464.87 = 380,289.96/x
  3. Step 3: Cross multiply
    912,893.51x = 1,369,464.87 × 380,289.96
  4. Step 4: Simplify right side
    912,893.51x = 520,793,740,633.71
  5. Step 5: Solve for x
    x = 520,793,740,633.71/912,893.51
  6. Step 6: Final answer
    x = 570,486.85

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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.