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Finding the Fourth Proportional to 480,378.59, 662,904.77 and 276,460.89

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Solution

The fourth proportional to 480,378.59, 662,904.77 and 276,460.89 is: 381,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,378.59 : 662,904.77 = 276,460.89 : x
  2. Step 2: Convert to fraction form
    480,378.59/662,904.77 = 276,460.89/x
  3. Step 3: Cross multiply
    480,378.59x = 662,904.77 × 276,460.89
  4. Step 4: Simplify right side
    480,378.59x = 183,267,242,699.45
  5. Step 5: Solve for x
    x = 183,267,242,699.45/480,378.59
  6. Step 6: Final answer
    x = 381,505.85

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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.