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Finding the Fourth Proportional to 407,117.40, 610,676.10 and 365,783.10

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Solution

The fourth proportional to 407,117.40, 610,676.10 and 365,783.10 is: 548,674.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,117.40 : 610,676.10 = 365,783.10 : x
  2. Step 2: Convert to fraction form
    407,117.40/610,676.10 = 365,783.10/x
  3. Step 3: Cross multiply
    407,117.40x = 610,676.10 × 365,783.10
  4. Step 4: Simplify right side
    407,117.40x = 223,374,996,953.91
  5. Step 5: Solve for x
    x = 223,374,996,953.91/407,117.40
  6. Step 6: Final answer
    x = 548,674.65

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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.