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Finding the Fourth Proportional to 674,535.13, 930,911.54 and 384,158.97

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Solution

The fourth proportional to 674,535.13, 930,911.54 and 384,158.97 is: 530,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,535.13 : 930,911.54 = 384,158.97 : x
  2. Step 2: Convert to fraction form
    674,535.13/930,911.54 = 384,158.97/x
  3. Step 3: Cross multiply
    674,535.13x = 930,911.54 × 384,158.97
  4. Step 4: Simplify right side
    674,535.13x = 357,618,018,367.51
  5. Step 5: Solve for x
    x = 357,618,018,367.51/674,535.13
  6. Step 6: Final answer
    x = 530,169.60

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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.