Home / 753,140.62-1,039,355.31-413,630.74

Finding the Fourth Proportional to 753,140.62, 1,039,355.31 and 413,630.74

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Solution

The fourth proportional to 753,140.62, 1,039,355.31 and 413,630.74 is: 570,822.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,140.62 : 1,039,355.31 = 413,630.74 : x
  2. Step 2: Convert to fraction form
    753,140.62/1,039,355.31 = 413,630.74/x
  3. Step 3: Cross multiply
    753,140.62x = 1,039,355.31 × 413,630.74
  4. Step 4: Simplify right side
    753,140.62x = 429,909,305,998.23
  5. Step 5: Solve for x
    x = 429,909,305,998.23/753,140.62
  6. Step 6: Final answer
    x = 570,822.09

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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.