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Finding the Fourth Proportional to 542,581.68, 748,610 and 427,503.56

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Solution

The fourth proportional to 542,581.68, 748,610 and 427,503.56 is: 589,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,581.68 : 748,610 = 427,503.56 : x
  2. Step 2: Convert to fraction form
    542,581.68/748,610 = 427,503.56/x
  3. Step 3: Cross multiply
    542,581.68x = 748,610 × 427,503.56
  4. Step 4: Simplify right side
    542,581.68x = 320,033,440,051.60
  5. Step 5: Solve for x
    x = 320,033,440,051.60/542,581.68
  6. Step 6: Final answer
    x = 589,834.59

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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.