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Finding the Fourth Proportional to 633,417.28, 874,109.28 and 346,935.04

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Solution

The fourth proportional to 633,417.28, 874,109.28 and 346,935.04 is: 478,766.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,417.28 : 874,109.28 = 346,935.04 : x
  2. Step 2: Convert to fraction form
    633,417.28/874,109.28 = 346,935.04/x
  3. Step 3: Cross multiply
    633,417.28x = 874,109.28 × 346,935.04
  4. Step 4: Simplify right side
    633,417.28x = 303,259,138,021.17
  5. Step 5: Solve for x
    x = 303,259,138,021.17/633,417.28
  6. Step 6: Final answer
    x = 478,766.76

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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.