Home / 1,421,662.59-2,134,385.64-748,216.85

Finding the Fourth Proportional to 1,421,662.59, 2,134,385.64 and 748,216.85

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Solution

The fourth proportional to 1,421,662.59, 2,134,385.64 and 748,216.85 is: 1,123,320.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,662.59 : 2,134,385.64 = 748,216.85 : x
  2. Step 2: Convert to fraction form
    1,421,662.59/2,134,385.64 = 748,216.85/x
  3. Step 3: Cross multiply
    1,421,662.59x = 2,134,385.64 × 748,216.85
  4. Step 4: Simplify right side
    1,421,662.59x = 1,596,983,289,574.11
  5. Step 5: Solve for x
    x = 1,596,983,289,574.11/1,421,662.59
  6. Step 6: Final answer
    x = 1,123,320.89

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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.