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Finding the Fourth Proportional to 670,576.69, 925,420.17 and 384,152.14

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Solution

The fourth proportional to 670,576.69, 925,420.17 and 384,152.14 is: 530,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,576.69 : 925,420.17 = 384,152.14 : x
  2. Step 2: Convert to fraction form
    670,576.69/925,420.17 = 384,152.14/x
  3. Step 3: Cross multiply
    670,576.69x = 925,420.17 × 384,152.14
  4. Step 4: Simplify right side
    670,576.69x = 355,502,136,391.11
  5. Step 5: Solve for x
    x = 355,502,136,391.11/670,576.69
  6. Step 6: Final answer
    x = 530,143.89

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1.5x scale

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.