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Finding the Fourth Proportional to 612,878.63, 845,426.91 and 367,800.71

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Solution

The fourth proportional to 612,878.63, 845,426.91 and 367,800.71 is: 507,357.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,878.63 : 845,426.91 = 367,800.71 : x
  2. Step 2: Convert to fraction form
    612,878.63/845,426.91 = 367,800.71/x
  3. Step 3: Cross multiply
    612,878.63x = 845,426.91 × 367,800.71
  4. Step 4: Simplify right side
    612,878.63x = 310,948,613,523.97
  5. Step 5: Solve for x
    x = 310,948,613,523.97/612,878.63
  6. Step 6: Final answer
    x = 507,357.58

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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.