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Finding the Fourth Proportional to 480,010.60, 718,266.30 and 438,020.20

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Solution

The fourth proportional to 480,010.60, 718,266.30 and 438,020.20 is: 655,433.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,010.60 : 718,266.30 = 438,020.20 : x
  2. Step 2: Convert to fraction form
    480,010.60/718,266.30 = 438,020.20/x
  3. Step 3: Cross multiply
    480,010.60x = 718,266.30 × 438,020.20
  4. Step 4: Simplify right side
    480,010.60x = 314,615,148,379.26
  5. Step 5: Solve for x
    x = 314,615,148,379.26/480,010.60
  6. Step 6: Final answer
    x = 655,433.75

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1.5x scale

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.