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Finding the Fourth Proportional to 653,740.34, 980,018.66 and 454,154.18

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Solution

The fourth proportional to 653,740.34, 980,018.66 and 454,154.18 is: 680,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,740.34 : 980,018.66 = 454,154.18 : x
  2. Step 2: Convert to fraction form
    653,740.34/980,018.66 = 454,154.18/x
  3. Step 3: Cross multiply
    653,740.34x = 980,018.66 × 454,154.18
  4. Step 4: Simplify right side
    653,740.34x = 445,079,567,152.29
  5. Step 5: Solve for x
    x = 445,079,567,152.29/653,740.34
  6. Step 6: Final answer
    x = 680,820.11

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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.