Home / 785,125.60-1,178,077.20-448,424.80

Finding the Fourth Proportional to 785,125.60, 1,178,077.20 and 448,424.80

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Solution

The fourth proportional to 785,125.60, 1,178,077.20 and 448,424.80 is: 672,859.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,125.60 : 1,178,077.20 = 448,424.80 : x
  2. Step 2: Convert to fraction form
    785,125.60/1,178,077.20 = 448,424.80/x
  3. Step 3: Cross multiply
    785,125.60x = 1,178,077.20 × 448,424.80
  4. Step 4: Simplify right side
    785,125.60x = 528,279,032,794.56
  5. Step 5: Solve for x
    x = 528,279,032,794.56/785,125.60
  6. Step 6: Final answer
    x = 672,859.26

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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.