Home / 465,981.72-642,684.88-302,459.44

Finding the Fourth Proportional to 465,981.72, 642,684.88 and 302,459.44

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Solution

The fourth proportional to 465,981.72, 642,684.88 and 302,459.44 is: 417,153.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,981.72 : 642,684.88 = 302,459.44 : x
  2. Step 2: Convert to fraction form
    465,981.72/642,684.88 = 302,459.44/x
  3. Step 3: Cross multiply
    465,981.72x = 642,684.88 × 302,459.44
  4. Step 4: Simplify right side
    465,981.72x = 194,386,108,901.27
  5. Step 5: Solve for x
    x = 194,386,108,901.27/465,981.72
  6. Step 6: Final answer
    x = 417,153.94

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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.