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Finding the Fourth Proportional to 636,746.30, 878,704.98 and 350,260.10

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Solution

The fourth proportional to 636,746.30, 878,704.98 and 350,260.10 is: 483,356.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,746.30 : 878,704.98 = 350,260.10 : x
  2. Step 2: Convert to fraction form
    636,746.30/878,704.98 = 350,260.10/x
  3. Step 3: Cross multiply
    636,746.30x = 878,704.98 × 350,260.10
  4. Step 4: Simplify right side
    636,746.30x = 307,775,294,165.30
  5. Step 5: Solve for x
    x = 307,775,294,165.30/636,746.30
  6. Step 6: Final answer
    x = 483,356.23

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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.