Home / 857,704.50-1,182,857.31-535,444.38

Finding the Fourth Proportional to 857,704.50, 1,182,857.31 and 535,444.38

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Solution

The fourth proportional to 857,704.50, 1,182,857.31 and 535,444.38 is: 738,429.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,704.50 : 1,182,857.31 = 535,444.38 : x
  2. Step 2: Convert to fraction form
    857,704.50/1,182,857.31 = 535,444.38/x
  3. Step 3: Cross multiply
    857,704.50x = 1,182,857.31 × 535,444.38
  4. Step 4: Simplify right side
    857,704.50x = 633,354,298,981.42
  5. Step 5: Solve for x
    x = 633,354,298,981.42/857,704.50
  6. Step 6: Final answer
    x = 738,429.49

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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.