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Finding the Fourth Proportional to 636,475.42, 878,358.63 and 350,017.30

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Solution

The fourth proportional to 636,475.42, 878,358.63 and 350,017.30 is: 483,036.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,475.42 : 878,358.63 = 350,017.30 : x
  2. Step 2: Convert to fraction form
    636,475.42/878,358.63 = 350,017.30/x
  3. Step 3: Cross multiply
    636,475.42x = 878,358.63 × 350,017.30
  4. Step 4: Simplify right side
    636,475.42x = 307,440,716,104.30
  5. Step 5: Solve for x
    x = 307,440,716,104.30/636,475.42
  6. Step 6: Final answer
    x = 483,036.28

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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.