Home / 603,614,004.70-905,421,007.05-396,989,743.90

Finding the Fourth Proportional to 603,614,004.70, 905,421,007.05 and 396,989,743.90

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Solution

The fourth proportional to 603,614,004.70, 905,421,007.05 and 396,989,743.90 is: 595,484,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,614,004.70 : 905,421,007.05 = 396,989,743.90 : x
  2. Step 2: Convert to fraction form
    603,614,004.70/905,421,007.05 = 396,989,743.90/x
  3. Step 3: Cross multiply
    603,614,004.70x = 905,421,007.05 × 396,989,743.90
  4. Step 4: Simplify right side
    603,614,004.70x = 359,442,853,710,459,584
  5. Step 5: Solve for x
    x = 359,442,853,710,459,584/603,614,004.70
  6. Step 6: Final answer
    x = 595,484,615.85

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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.