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Finding the Fourth Proportional to 673,391.81, 929,300.45 and 367,487.95

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Solution

The fourth proportional to 673,391.81, 929,300.45 and 367,487.95 is: 507,144.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,391.81 : 929,300.45 = 367,487.95 : x
  2. Step 2: Convert to fraction form
    673,391.81/929,300.45 = 367,487.95/x
  3. Step 3: Cross multiply
    673,391.81x = 929,300.45 × 367,487.95
  4. Step 4: Simplify right side
    673,391.81x = 341,506,713,117.44
  5. Step 5: Solve for x
    x = 341,506,713,117.44/673,391.81
  6. Step 6: Final answer
    x = 507,144.14

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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.