Home / 1,157,538.30-1,736,307.45-399,378.30

Finding the Fourth Proportional to 1,157,538.30, 1,736,307.45 and 399,378.30

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Solution

The fourth proportional to 1,157,538.30, 1,736,307.45 and 399,378.30 is: 599,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,538.30 : 1,736,307.45 = 399,378.30 : x
  2. Step 2: Convert to fraction form
    1,157,538.30/1,736,307.45 = 399,378.30/x
  3. Step 3: Cross multiply
    1,157,538.30x = 1,736,307.45 × 399,378.30
  4. Step 4: Simplify right side
    1,157,538.30x = 693,443,517,658.34
  5. Step 5: Solve for x
    x = 693,443,517,658.34/1,157,538.30
  6. Step 6: Final answer
    x = 599,067.45

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Double scale
Find fourth proportional to 1,157,539.30, 1,736,308.95 and 399,379.30
Similar ratio
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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.