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Finding the Fourth Proportional to 672,602.84, 928,199.10 and 370,807.64

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Solution

The fourth proportional to 672,602.84, 928,199.10 and 370,807.64 is: 511,718.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,602.84 : 928,199.10 = 370,807.64 : x
  2. Step 2: Convert to fraction form
    672,602.84/928,199.10 = 370,807.64/x
  3. Step 3: Cross multiply
    672,602.84x = 928,199.10 × 370,807.64
  4. Step 4: Simplify right side
    672,602.84x = 344,183,317,721.12
  5. Step 5: Solve for x
    x = 344,183,317,721.12/672,602.84
  6. Step 6: Final answer
    x = 511,718.50

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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.