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Finding the Fourth Proportional to 508,743.20, 702,030.48 and 282,370.88

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Solution

The fourth proportional to 508,743.20, 702,030.48 and 282,370.88 is: 389,652.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,743.20 : 702,030.48 = 282,370.88 : x
  2. Step 2: Convert to fraction form
    508,743.20/702,030.48 = 282,370.88/x
  3. Step 3: Cross multiply
    508,743.20x = 702,030.48 × 282,370.88
  4. Step 4: Simplify right side
    508,743.20x = 198,232,960,914.27
  5. Step 5: Solve for x
    x = 198,232,960,914.27/508,743.20
  6. Step 6: Final answer
    x = 389,652.31

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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.