Home / 818,574.80-1,227,862.20-257,536.40

Finding the Fourth Proportional to 818,574.80, 1,227,862.20 and 257,536.40

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Solution

The fourth proportional to 818,574.80, 1,227,862.20 and 257,536.40 is: 386,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,574.80 : 1,227,862.20 = 257,536.40 : x
  2. Step 2: Convert to fraction form
    818,574.80/1,227,862.20 = 257,536.40/x
  3. Step 3: Cross multiply
    818,574.80x = 1,227,862.20 × 257,536.40
  4. Step 4: Simplify right side
    818,574.80x = 316,219,210,684.08
  5. Step 5: Solve for x
    x = 316,219,210,684.08/818,574.80
  6. Step 6: Final answer
    x = 386,304.60

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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.