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Finding the Fourth Proportional to 630,622.80, 944,551.80 and 547,678.80

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Solution

The fourth proportional to 630,622.80, 944,551.80 and 547,678.80 is: 820,317.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,622.80 : 944,551.80 = 547,678.80 : x
  2. Step 2: Convert to fraction form
    630,622.80/944,551.80 = 547,678.80/x
  3. Step 3: Cross multiply
    630,622.80x = 944,551.80 × 547,678.80
  4. Step 4: Simplify right side
    630,622.80x = 517,310,996,361.84
  5. Step 5: Solve for x
    x = 517,310,996,361.84/630,622.80
  6. Step 6: Final answer
    x = 820,317.62

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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.