Home / 1,586,421.42-2,378,737.86-521,177.46

Finding the Fourth Proportional to 1,586,421.42, 2,378,737.86 and 521,177.46

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Solution

The fourth proportional to 1,586,421.42, 2,378,737.86 and 521,177.46 is: 781,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,421.42 : 2,378,737.86 = 521,177.46 : x
  2. Step 2: Convert to fraction form
    1,586,421.42/2,378,737.86 = 521,177.46/x
  3. Step 3: Cross multiply
    1,586,421.42x = 2,378,737.86 × 521,177.46
  4. Step 4: Simplify right side
    1,586,421.42x = 1,239,744,555,880.64
  5. Step 5: Solve for x
    x = 1,239,744,555,880.64/1,586,421.42
  6. Step 6: Final answer
    x = 781,472.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.