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Finding the Fourth Proportional to 390,196.84, 584,684.70 and 301,668.52

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Solution

The fourth proportional to 390,196.84, 584,684.70 and 301,668.52 is: 452,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,196.84 : 584,684.70 = 301,668.52 : x
  2. Step 2: Convert to fraction form
    390,196.84/584,684.70 = 301,668.52/x
  3. Step 3: Cross multiply
    390,196.84x = 584,684.70 × 301,668.52
  4. Step 4: Simplify right side
    390,196.84x = 176,380,968,115.64
  5. Step 5: Solve for x
    x = 176,380,968,115.64/390,196.84
  6. Step 6: Final answer
    x = 452,030.74

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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.