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Finding the Fourth Proportional to 636,373.53, 878,212.13 and 346,004.60

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Solution

The fourth proportional to 636,373.53, 878,212.13 and 346,004.60 is: 477,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,373.53 : 878,212.13 = 346,004.60 : x
  2. Step 2: Convert to fraction form
    636,373.53/878,212.13 = 346,004.60/x
  3. Step 3: Cross multiply
    636,373.53x = 878,212.13 × 346,004.60
  4. Step 4: Simplify right side
    636,373.53x = 303,865,430,634.71
  5. Step 5: Solve for x
    x = 303,865,430,634.71/636,373.53
  6. Step 6: Final answer
    x = 477,495.40

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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.