Home / 762,137.80-1,051,674.30-439,951.72

Finding the Fourth Proportional to 762,137.80, 1,051,674.30 and 439,951.72

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Solution

The fourth proportional to 762,137.80, 1,051,674.30 and 439,951.72 is: 607,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,137.80 : 1,051,674.30 = 439,951.72 : x
  2. Step 2: Convert to fraction form
    762,137.80/1,051,674.30 = 439,951.72/x
  3. Step 3: Cross multiply
    762,137.80x = 1,051,674.30 × 439,951.72
  4. Step 4: Simplify right side
    762,137.80x = 462,685,917,164.80
  5. Step 5: Solve for x
    x = 462,685,917,164.80/762,137.80
  6. Step 6: Final answer
    x = 607,089.58

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1.5x scale

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.