Home / 761,876.76-1,051,399.50-439,653.72

Finding the Fourth Proportional to 761,876.76, 1,051,399.50 and 439,653.72

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Solution

The fourth proportional to 761,876.76, 1,051,399.50 and 439,653.72 is: 606,727.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,876.76 : 1,051,399.50 = 439,653.72 : x
  2. Step 2: Convert to fraction form
    761,876.76/1,051,399.50 = 439,653.72/x
  3. Step 3: Cross multiply
    761,876.76x = 1,051,399.50 × 439,653.72
  4. Step 4: Simplify right side
    761,876.76x = 462,251,701,381.14
  5. Step 5: Solve for x
    x = 462,251,701,381.14/761,876.76
  6. Step 6: Final answer
    x = 606,727.66

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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.