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Finding the Fourth Proportional to 540,127, 745,366.44 and 298,419.76

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Solution

The fourth proportional to 540,127, 745,366.44 and 298,419.76 is: 411,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,127 : 745,366.44 = 298,419.76 : x
  2. Step 2: Convert to fraction form
    540,127/745,366.44 = 298,419.76/x
  3. Step 3: Cross multiply
    540,127x = 745,366.44 × 298,419.76
  4. Step 4: Simplify right side
    540,127x = 222,432,074,136.85
  5. Step 5: Solve for x
    x = 222,432,074,136.85/540,127
  6. Step 6: Final answer
    x = 411,814.40

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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.