Home / 818,066.30-1,129,485.66-512,265.38

Finding the Fourth Proportional to 818,066.30, 1,129,485.66 and 512,265.38

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Solution

The fourth proportional to 818,066.30, 1,129,485.66 and 512,265.38 is: 707,273.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,066.30 : 1,129,485.66 = 512,265.38 : x
  2. Step 2: Convert to fraction form
    818,066.30/1,129,485.66 = 512,265.38/x
  3. Step 3: Cross multiply
    818,066.30x = 1,129,485.66 × 512,265.38
  4. Step 4: Simplify right side
    818,066.30x = 578,596,400,824.45
  5. Step 5: Solve for x
    x = 578,596,400,824.45/818,066.30
  6. Step 6: Final answer
    x = 707,273.24

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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.