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Finding the Fourth Proportional to 480,408, 662,963.18 and 262,617.63

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Solution

The fourth proportional to 480,408, 662,963.18 and 262,617.63 is: 362,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,408 : 662,963.18 = 262,617.63 : x
  2. Step 2: Convert to fraction form
    480,408/662,963.18 = 262,617.63/x
  3. Step 3: Cross multiply
    480,408x = 662,963.18 × 262,617.63
  4. Step 4: Simplify right side
    480,408x = 174,105,817,795.78
  5. Step 5: Solve for x
    x = 174,105,817,795.78/480,408
  6. Step 6: Final answer
    x = 362,412.40

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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.