Home / 540,466.09-745,830.07-298,742.45

Finding the Fourth Proportional to 540,466.09, 745,830.07 and 298,742.45

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Solution

The fourth proportional to 540,466.09, 745,830.07 and 298,742.45 is: 412,257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,466.09 : 745,830.07 = 298,742.45 : x
  2. Step 2: Convert to fraction form
    540,466.09/745,830.07 = 298,742.45/x
  3. Step 3: Cross multiply
    540,466.09x = 745,830.07 × 298,742.45
  4. Step 4: Simplify right side
    540,466.09x = 222,811,097,919.47
  5. Step 5: Solve for x
    x = 222,811,097,919.47/540,466.09
  6. Step 6: Final answer
    x = 412,257.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.