Home / 900,214.51-1,242,175.74-497,832.43

Finding the Fourth Proportional to 900,214.51, 1,242,175.74 and 497,832.43

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Solution

The fourth proportional to 900,214.51, 1,242,175.74 and 497,832.43 is: 686,942.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,214.51 : 1,242,175.74 = 497,832.43 : x
  2. Step 2: Convert to fraction form
    900,214.51/1,242,175.74 = 497,832.43/x
  3. Step 3: Cross multiply
    900,214.51x = 1,242,175.74 × 497,832.43
  4. Step 4: Simplify right side
    900,214.51x = 618,395,367,131.25
  5. Step 5: Solve for x
    x = 618,395,367,131.25/900,214.51
  6. Step 6: Final answer
    x = 686,942.23

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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.