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Finding the Fourth Proportional to 400,953.69, 601,430.28 and 374,381.64

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Solution

The fourth proportional to 400,953.69, 601,430.28 and 374,381.64 is: 561,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,953.69 : 601,430.28 = 374,381.64 : x
  2. Step 2: Convert to fraction form
    400,953.69/601,430.28 = 374,381.64/x
  3. Step 3: Cross multiply
    400,953.69x = 601,430.28 × 374,381.64
  4. Step 4: Simplify right side
    400,953.69x = 225,164,454,572.06
  5. Step 5: Solve for x
    x = 225,164,454,572.06/400,953.69
  6. Step 6: Final answer
    x = 561,572.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.