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Finding the Fourth Proportional to 480,097.20, 662,720.76 and 429,708.72

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Solution

The fourth proportional to 480,097.20, 662,720.76 and 429,708.72 is: 593,165.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,097.20 : 662,720.76 = 429,708.72 : x
  2. Step 2: Convert to fraction form
    480,097.20/662,720.76 = 429,708.72/x
  3. Step 3: Cross multiply
    480,097.20x = 662,720.76 × 429,708.72
  4. Step 4: Simplify right side
    480,097.20x = 284,776,889,497.03
  5. Step 5: Solve for x
    x = 284,776,889,497.03/480,097.20
  6. Step 6: Final answer
    x = 593,165.07

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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.