Home / 645,460.77-890,923.44-430,600.31

Finding the Fourth Proportional to 645,460.77, 890,923.44 and 430,600.31

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Solution

The fourth proportional to 645,460.77, 890,923.44 and 430,600.31 is: 594,353.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,460.77 : 890,923.44 = 430,600.31 : x
  2. Step 2: Convert to fraction form
    645,460.77/890,923.44 = 430,600.31/x
  3. Step 3: Cross multiply
    645,460.77x = 890,923.44 × 430,600.31
  4. Step 4: Simplify right side
    645,460.77x = 383,631,906,610.40
  5. Step 5: Solve for x
    x = 383,631,906,610.40/645,460.77
  6. Step 6: Final answer
    x = 594,353.56

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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.