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Finding the Fourth Proportional to 480,323.80, 719,708.10 and 302,512.60

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Solution

The fourth proportional to 480,323.80, 719,708.10 and 302,512.60 is: 453,279.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,323.80 : 719,708.10 = 302,512.60 : x
  2. Step 2: Convert to fraction form
    480,323.80/719,708.10 = 302,512.60/x
  3. Step 3: Cross multiply
    480,323.80x = 719,708.10 × 302,512.60
  4. Step 4: Simplify right side
    480,323.80x = 217,720,768,572.06
  5. Step 5: Solve for x
    x = 217,720,768,572.06/480,323.80
  6. Step 6: Final answer
    x = 453,279.16

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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.