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Finding the Fourth Proportional to 652,386.08, 978,566.76 and 268,053.22

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Solution

The fourth proportional to 652,386.08, 978,566.76 and 268,053.22 is: 402,074.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,386.08 : 978,566.76 = 268,053.22 : x
  2. Step 2: Convert to fraction form
    652,386.08/978,566.76 = 268,053.22/x
  3. Step 3: Cross multiply
    652,386.08x = 978,566.76 × 268,053.22
  4. Step 4: Simplify right side
    652,386.08x = 262,307,971,002.97
  5. Step 5: Solve for x
    x = 262,307,971,002.97/652,386.08
  6. Step 6: Final answer
    x = 402,074.75

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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.