Home / 759,637.60-1,138,743.60-286,640.80

Finding the Fourth Proportional to 759,637.60, 1,138,743.60 and 286,640.80

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Solution

The fourth proportional to 759,637.60, 1,138,743.60 and 286,640.80 is: 429,692.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,637.60 : 1,138,743.60 = 286,640.80 : x
  2. Step 2: Convert to fraction form
    759,637.60/1,138,743.60 = 286,640.80/x
  3. Step 3: Cross multiply
    759,637.60x = 1,138,743.60 × 286,640.80
  4. Step 4: Simplify right side
    759,637.60x = 326,410,376,498.88
  5. Step 5: Solve for x
    x = 326,410,376,498.88/759,637.60
  6. Step 6: Final answer
    x = 429,692.23

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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.