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Finding the Fourth Proportional to 480,133.88, 662,654.16 and 286,549.80

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Solution

The fourth proportional to 480,133.88, 662,654.16 and 286,549.80 is: 395,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,133.88 : 662,654.16 = 286,549.80 : x
  2. Step 2: Convert to fraction form
    480,133.88/662,654.16 = 286,549.80/x
  3. Step 3: Cross multiply
    480,133.88x = 662,654.16 × 286,549.80
  4. Step 4: Simplify right side
    480,133.88x = 189,883,417,017.17
  5. Step 5: Solve for x
    x = 189,883,417,017.17/480,133.88
  6. Step 6: Final answer
    x = 395,480.15

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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.