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Finding the Fourth Proportional to 536,430.96, 740,276.28 and 321,580.08

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Solution

The fourth proportional to 536,430.96, 740,276.28 and 321,580.08 is: 443,781.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,430.96 : 740,276.28 = 321,580.08 : x
  2. Step 2: Convert to fraction form
    536,430.96/740,276.28 = 321,580.08/x
  3. Step 3: Cross multiply
    536,430.96x = 740,276.28 × 321,580.08
  4. Step 4: Simplify right side
    536,430.96x = 238,058,105,344.50
  5. Step 5: Solve for x
    x = 238,058,105,344.50/536,430.96
  6. Step 6: Final answer
    x = 443,781.44

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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.