Home / 979,239.60-1,468,839.96-644,395.32

Finding the Fourth Proportional to 979,239.60, 1,468,839.96 and 644,395.32

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Solution

The fourth proportional to 979,239.60, 1,468,839.96 and 644,395.32 is: 966,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,239.60 : 1,468,839.96 = 644,395.32 : x
  2. Step 2: Convert to fraction form
    979,239.60/1,468,839.96 = 644,395.32/x
  3. Step 3: Cross multiply
    979,239.60x = 1,468,839.96 × 644,395.32
  4. Step 4: Simplify right side
    979,239.60x = 946,513,596,052.99
  5. Step 5: Solve for x
    x = 946,513,596,052.99/979,239.60
  6. Step 6: Final answer
    x = 966,580.19

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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.