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Finding the Fourth Proportional to 684,348.95, 944,087.65 and 442,709.45

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Solution

The fourth proportional to 684,348.95, 944,087.65 and 442,709.45 is: 610,735.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,348.95 : 944,087.65 = 442,709.45 : x
  2. Step 2: Convert to fraction form
    684,348.95/944,087.65 = 442,709.45/x
  3. Step 3: Cross multiply
    684,348.95x = 944,087.65 × 442,709.45
  4. Step 4: Simplify right side
    684,348.95x = 417,956,521,996.41
  5. Step 5: Solve for x
    x = 417,956,521,996.41/684,348.95
  6. Step 6: Final answer
    x = 610,735.97

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1.5x scale

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.