Home / 839,071.81-1,158,002.74-512,366.82

Finding the Fourth Proportional to 839,071.81, 1,158,002.74 and 512,366.82

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Solution

The fourth proportional to 839,071.81, 1,158,002.74 and 512,366.82 is: 707,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,071.81 : 1,158,002.74 = 512,366.82 : x
  2. Step 2: Convert to fraction form
    839,071.81/1,158,002.74 = 512,366.82/x
  3. Step 3: Cross multiply
    839,071.81x = 1,158,002.74 × 512,366.82
  4. Step 4: Simplify right side
    839,071.81x = 593,322,181,445.09
  5. Step 5: Solve for x
    x = 593,322,181,445.09/839,071.81
  6. Step 6: Final answer
    x = 707,117.29

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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.