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Finding the Fourth Proportional to 426,328.64, 588,325.92 and 245,038.40

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Solution

The fourth proportional to 426,328.64, 588,325.92 and 245,038.40 is: 338,148.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,328.64 : 588,325.92 = 245,038.40 : x
  2. Step 2: Convert to fraction form
    426,328.64/588,325.92 = 245,038.40/x
  3. Step 3: Cross multiply
    426,328.64x = 588,325.92 × 245,038.40
  4. Step 4: Simplify right side
    426,328.64x = 144,162,442,115.33
  5. Step 5: Solve for x
    x = 144,162,442,115.33/426,328.64
  6. Step 6: Final answer
    x = 338,148.62

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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.