Home / 1,136,421.36-1,704,909.60-378,261.36

Finding the Fourth Proportional to 1,136,421.36, 1,704,909.60 and 378,261.36

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Solution

The fourth proportional to 1,136,421.36, 1,704,909.60 and 378,261.36 is: 567,484.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,421.36 : 1,704,909.60 = 378,261.36 : x
  2. Step 2: Convert to fraction form
    1,136,421.36/1,704,909.60 = 378,261.36/x
  3. Step 3: Cross multiply
    1,136,421.36x = 1,704,909.60 × 378,261.36
  4. Step 4: Simplify right side
    1,136,421.36x = 644,901,423,973.06
  5. Step 5: Solve for x
    x = 644,901,423,973.06/1,136,421.36
  6. Step 6: Final answer
    x = 567,484.43

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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.