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Finding the Fourth Proportional to 480,010.10, 718,265.55 and 438,019.70

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Solution

The fourth proportional to 480,010.10, 718,265.55 and 438,019.70 is: 655,433.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,010.10 : 718,265.55 = 438,019.70 : x
  2. Step 2: Convert to fraction form
    480,010.10/718,265.55 = 438,019.70/x
  3. Step 3: Cross multiply
    480,010.10x = 718,265.55 × 438,019.70
  4. Step 4: Simplify right side
    480,010.10x = 314,614,460,731.34
  5. Step 5: Solve for x
    x = 314,614,460,731.34/480,010.10
  6. Step 6: Final answer
    x = 655,433.00

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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.