Home / 904,729.26-1,355,026.77-431,746.77

Finding the Fourth Proportional to 904,729.26, 1,355,026.77 and 431,746.77

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Solution

The fourth proportional to 904,729.26, 1,355,026.77 and 431,746.77 is: 646,633.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,729.26 : 1,355,026.77 = 431,746.77 : x
  2. Step 2: Convert to fraction form
    904,729.26/1,355,026.77 = 431,746.77/x
  3. Step 3: Cross multiply
    904,729.26x = 1,355,026.77 × 431,746.77
  4. Step 4: Simplify right side
    904,729.26x = 585,028,431,211.03
  5. Step 5: Solve for x
    x = 585,028,431,211.03/904,729.26
  6. Step 6: Final answer
    x = 646,633.70

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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.