Home / 1,240,354.91-1,711,390.39-723,814.06

Finding the Fourth Proportional to 1,240,354.91, 1,711,390.39 and 723,814.06

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Solution

The fourth proportional to 1,240,354.91, 1,711,390.39 and 723,814.06 is: 998,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,354.91 : 1,711,390.39 = 723,814.06 : x
  2. Step 2: Convert to fraction form
    1,240,354.91/1,711,390.39 = 723,814.06/x
  3. Step 3: Cross multiply
    1,240,354.91x = 1,711,390.39 × 723,814.06
  4. Step 4: Simplify right side
    1,240,354.91x = 1,238,728,426,430.88
  5. Step 5: Solve for x
    x = 1,238,728,426,430.88/1,240,354.91
  6. Step 6: Final answer
    x = 998,688.70

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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.