Home / 904,992.20-1,355,421.57-432,009.71

Finding the Fourth Proportional to 904,992.20, 1,355,421.57 and 432,009.71

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Solution

The fourth proportional to 904,992.20, 1,355,421.57 and 432,009.71 is: 647,027.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,992.20 : 1,355,421.57 = 432,009.71 : x
  2. Step 2: Convert to fraction form
    904,992.20/1,355,421.57 = 432,009.71/x
  3. Step 3: Cross multiply
    904,992.20x = 1,355,421.57 × 432,009.71
  4. Step 4: Simplify right side
    904,992.20x = 585,555,272,606.34
  5. Step 5: Solve for x
    x = 585,555,272,606.34/904,992.20
  6. Step 6: Final answer
    x = 647,027.98

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1.5x scale

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.