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Finding the Fourth Proportional to 554,008.24, 830,716.92 and 287,500.40

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Solution

The fourth proportional to 554,008.24, 830,716.92 and 287,500.40 is: 431,097.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,008.24 : 830,716.92 = 287,500.40 : x
  2. Step 2: Convert to fraction form
    554,008.24/830,716.92 = 287,500.40/x
  3. Step 3: Cross multiply
    554,008.24x = 830,716.92 × 287,500.40
  4. Step 4: Simplify right side
    554,008.24x = 238,831,446,786.77
  5. Step 5: Solve for x
    x = 238,831,446,786.77/554,008.24
  6. Step 6: Final answer
    x = 431,097.28

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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.