Home / 1,000,678.42-1,380,372.32-633,041.69

Finding the Fourth Proportional to 1,000,678.42, 1,380,372.32 and 633,041.69

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Solution

The fourth proportional to 1,000,678.42, 1,380,372.32 and 633,041.69 is: 873,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,678.42 : 1,380,372.32 = 633,041.69 : x
  2. Step 2: Convert to fraction form
    1,000,678.42/1,380,372.32 = 633,041.69/x
  3. Step 3: Cross multiply
    1,000,678.42x = 1,380,372.32 × 633,041.69
  4. Step 4: Simplify right side
    1,000,678.42x = 873,833,226,282.02
  5. Step 5: Solve for x
    x = 873,833,226,282.02/1,000,678.42
  6. Step 6: Final answer
    x = 873,240.80

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Double scale
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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.