Home / 1,276,521.02-1,915,065.39-556,979.34

Finding the Fourth Proportional to 1,276,521.02, 1,915,065.39 and 556,979.34

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Solution

The fourth proportional to 1,276,521.02, 1,915,065.39 and 556,979.34 is: 835,592.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,521.02 : 1,915,065.39 = 556,979.34 : x
  2. Step 2: Convert to fraction form
    1,276,521.02/1,915,065.39 = 556,979.34/x
  3. Step 3: Cross multiply
    1,276,521.02x = 1,915,065.39 × 556,979.34
  4. Step 4: Simplify right side
    1,276,521.02x = 1,066,651,856,979.04
  5. Step 5: Solve for x
    x = 1,066,651,856,979.04/1,276,521.02
  6. Step 6: Final answer
    x = 835,592.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.