Home / 912,893.49-1,369,464.77-380,289.94

Finding the Fourth Proportional to 912,893.49, 1,369,464.77 and 380,289.94

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Solution

The fourth proportional to 912,893.49, 1,369,464.77 and 380,289.94 is: 570,486.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,893.49 : 1,369,464.77 = 380,289.94 : x
  2. Step 2: Convert to fraction form
    912,893.49/1,369,464.77 = 380,289.94/x
  3. Step 3: Cross multiply
    912,893.49x = 1,369,464.77 × 380,289.94
  4. Step 4: Simplify right side
    912,893.49x = 520,793,672,742.48
  5. Step 5: Solve for x
    x = 520,793,672,742.48/912,893.49
  6. Step 6: Final answer
    x = 570,486.79

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1.5x scale

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.