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Finding the Fourth Proportional to 540,026.40, 745,221.99 and 298,303.77

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Solution

The fourth proportional to 540,026.40, 745,221.99 and 298,303.77 is: 411,651.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,026.40 : 745,221.99 = 298,303.77 : x
  2. Step 2: Convert to fraction form
    540,026.40/745,221.99 = 298,303.77/x
  3. Step 3: Cross multiply
    540,026.40x = 745,221.99 × 298,303.77
  4. Step 4: Simplify right side
    540,026.40x = 222,302,529,103.90
  5. Step 5: Solve for x
    x = 222,302,529,103.90/540,026.40
  6. Step 6: Final answer
    x = 411,651.23

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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.