Home / 839,449.13-1,158,322.95-471,874.30

Finding the Fourth Proportional to 839,449.13, 1,158,322.95 and 471,874.30

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Solution

The fourth proportional to 839,449.13, 1,158,322.95 and 471,874.30 is: 651,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,449.13 : 1,158,322.95 = 471,874.30 : x
  2. Step 2: Convert to fraction form
    839,449.13/1,158,322.95 = 471,874.30/x
  3. Step 3: Cross multiply
    839,449.13x = 1,158,322.95 × 471,874.30
  4. Step 4: Simplify right side
    839,449.13x = 546,582,828,309.38
  5. Step 5: Solve for x
    x = 546,582,828,309.38/839,449.13
  6. Step 6: Final answer
    x = 651,120.85

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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.