Home / 1,071,885.52-1,479,146.24-636,320.88

Finding the Fourth Proportional to 1,071,885.52, 1,479,146.24 and 636,320.88

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Solution

The fourth proportional to 1,071,885.52, 1,479,146.24 and 636,320.88 is: 878,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,885.52 : 1,479,146.24 = 636,320.88 : x
  2. Step 2: Convert to fraction form
    1,071,885.52/1,479,146.24 = 636,320.88/x
  3. Step 3: Cross multiply
    1,071,885.52x = 1,479,146.24 × 636,320.88
  4. Step 4: Simplify right side
    1,071,885.52x = 941,211,637,085.49
  5. Step 5: Solve for x
    x = 941,211,637,085.49/1,071,885.52
  6. Step 6: Final answer
    x = 878,089.70

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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.