Home / 1,118,431.40-1,677,926.55-360,344.30

Finding the Fourth Proportional to 1,118,431.40, 1,677,926.55 and 360,344.30

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Solution

The fourth proportional to 1,118,431.40, 1,677,926.55 and 360,344.30 is: 540,606.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,431.40 : 1,677,926.55 = 360,344.30 : x
  2. Step 2: Convert to fraction form
    1,118,431.40/1,677,926.55 = 360,344.30/x
  3. Step 3: Cross multiply
    1,118,431.40x = 1,677,926.55 × 360,344.30
  4. Step 4: Simplify right side
    1,118,431.40x = 604,631,268,111.17
  5. Step 5: Solve for x
    x = 604,631,268,111.17/1,118,431.40
  6. Step 6: Final answer
    x = 540,606.49

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Double scale
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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.