Home / 1,486,931.72-2,051,898.90-842,338.76

Finding the Fourth Proportional to 1,486,931.72, 2,051,898.90 and 842,338.76

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Solution

The fourth proportional to 1,486,931.72, 2,051,898.90 and 842,338.76 is: 1,162,389.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,931.72 : 2,051,898.90 = 842,338.76 : x
  2. Step 2: Convert to fraction form
    1,486,931.72/2,051,898.90 = 842,338.76/x
  3. Step 3: Cross multiply
    1,486,931.72x = 2,051,898.90 × 842,338.76
  4. Step 4: Simplify right side
    1,486,931.72x = 1,728,393,975,071.36
  5. Step 5: Solve for x
    x = 1,728,393,975,071.36/1,486,931.72
  6. Step 6: Final answer
    x = 1,162,389.61

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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.