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Finding the Fourth Proportional to 354,071.28, 492,012.12 and 350,430.24

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Solution

The fourth proportional to 354,071.28, 492,012.12 and 350,430.24 is: 486,952.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,071.28 : 492,012.12 = 350,430.24 : x
  2. Step 2: Convert to fraction form
    354,071.28/492,012.12 = 350,430.24/x
  3. Step 3: Cross multiply
    354,071.28x = 492,012.12 × 350,430.24
  4. Step 4: Simplify right side
    354,071.28x = 172,415,925,294.51
  5. Step 5: Solve for x
    x = 172,415,925,294.51/354,071.28
  6. Step 6: Final answer
    x = 486,952.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.