Home / 868,464.72-1,198,459.80-486,488.88

Finding the Fourth Proportional to 868,464.72, 1,198,459.80 and 486,488.88

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Solution

The fourth proportional to 868,464.72, 1,198,459.80 and 486,488.88 is: 671,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,464.72 : 1,198,459.80 = 486,488.88 : x
  2. Step 2: Convert to fraction form
    868,464.72/1,198,459.80 = 486,488.88/x
  3. Step 3: Cross multiply
    868,464.72x = 1,198,459.80 × 486,488.88
  4. Step 4: Simplify right side
    868,464.72x = 583,037,365,827.02
  5. Step 5: Solve for x
    x = 583,037,365,827.02/868,464.72
  6. Step 6: Final answer
    x = 671,342.60

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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.