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Finding the Fourth Proportional to 630,433.60, 946,264.80 and 315,246.40

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Solution

The fourth proportional to 630,433.60, 946,264.80 and 315,246.40 is: 473,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,433.60 : 946,264.80 = 315,246.40 : x
  2. Step 2: Convert to fraction form
    630,433.60/946,264.80 = 315,246.40/x
  3. Step 3: Cross multiply
    630,433.60x = 946,264.80 × 315,246.40
  4. Step 4: Simplify right side
    630,433.60x = 298,306,571,646.72
  5. Step 5: Solve for x
    x = 298,306,571,646.72/630,433.60
  6. Step 6: Final answer
    x = 473,176.83

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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.