Home / 762,189.60-1,051,752.72-422,656.80

Finding the Fourth Proportional to 762,189.60, 1,051,752.72 and 422,656.80

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Solution

The fourth proportional to 762,189.60, 1,051,752.72 and 422,656.80 is: 583,228.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,189.60 : 1,051,752.72 = 422,656.80 : x
  2. Step 2: Convert to fraction form
    762,189.60/1,051,752.72 = 422,656.80/x
  3. Step 3: Cross multiply
    762,189.60x = 1,051,752.72 × 422,656.80
  4. Step 4: Simplify right side
    762,189.60x = 444,530,439,026.50
  5. Step 5: Solve for x
    x = 444,530,439,026.50/762,189.60
  6. Step 6: Final answer
    x = 583,228.16

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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.