Home / 712,919.24-1,069,513.73-286,488.26

Finding the Fourth Proportional to 712,919.24, 1,069,513.73 and 286,488.26

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Solution

The fourth proportional to 712,919.24, 1,069,513.73 and 286,488.26 is: 429,786.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,919.24 : 1,069,513.73 = 286,488.26 : x
  2. Step 2: Convert to fraction form
    712,919.24/1,069,513.73 = 286,488.26/x
  3. Step 3: Cross multiply
    712,919.24x = 1,069,513.73 × 286,488.26
  4. Step 4: Simplify right side
    712,919.24x = 306,403,120,773.80
  5. Step 5: Solve for x
    x = 306,403,120,773.80/712,919.24
  6. Step 6: Final answer
    x = 429,786.58

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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.