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Finding the Fourth Proportional to 515,453.80, 712,007.58 and 429,692.92

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Solution

The fourth proportional to 515,453.80, 712,007.58 and 429,692.92 is: 593,544.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,453.80 : 712,007.58 = 429,692.92 : x
  2. Step 2: Convert to fraction form
    515,453.80/712,007.58 = 429,692.92/x
  3. Step 3: Cross multiply
    515,453.80x = 712,007.58 × 429,692.92
  4. Step 4: Simplify right side
    515,453.80x = 305,944,616,112.33
  5. Step 5: Solve for x
    x = 305,944,616,112.33/515,453.80
  6. Step 6: Final answer
    x = 593,544.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.