Home / 839,070.81-1,158,001.36-512,365.82

Finding the Fourth Proportional to 839,070.81, 1,158,001.36 and 512,365.82

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Solution

The fourth proportional to 839,070.81, 1,158,001.36 and 512,365.82 is: 707,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,070.81 : 1,158,001.36 = 512,365.82 : x
  2. Step 2: Convert to fraction form
    839,070.81/1,158,001.36 = 512,365.82/x
  3. Step 3: Cross multiply
    839,070.81x = 1,158,001.36 × 512,365.82
  4. Step 4: Simplify right side
    839,070.81x = 593,320,309,306.59
  5. Step 5: Solve for x
    x = 593,320,309,306.59/839,070.81
  6. Step 6: Final answer
    x = 707,115.90

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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.