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Finding the Fourth Proportional to 407,710.20, 610,355.70 and 302,993.40

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Solution

The fourth proportional to 407,710.20, 610,355.70 and 302,993.40 is: 453,591.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,710.20 : 610,355.70 = 302,993.40 : x
  2. Step 2: Convert to fraction form
    407,710.20/610,355.70 = 302,993.40/x
  3. Step 3: Cross multiply
    407,710.20x = 610,355.70 × 302,993.40
  4. Step 4: Simplify right side
    407,710.20x = 184,933,748,752.38
  5. Step 5: Solve for x
    x = 184,933,748,752.38/407,710.20
  6. Step 6: Final answer
    x = 453,591.18

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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.