Home / 638,004.63-955,431.25-475,509.08

Finding the Fourth Proportional to 638,004.63, 955,431.25 and 475,509.08

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Solution

The fourth proportional to 638,004.63, 955,431.25 and 475,509.08 is: 712,089.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,004.63 : 955,431.25 = 475,509.08 : x
  2. Step 2: Convert to fraction form
    638,004.63/955,431.25 = 475,509.08/x
  3. Step 3: Cross multiply
    638,004.63x = 955,431.25 × 475,509.08
  4. Step 4: Simplify right side
    638,004.63x = 454,316,234,690.75
  5. Step 5: Solve for x
    x = 454,316,234,690.75/638,004.63
  6. Step 6: Final answer
    x = 712,089.24

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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.