Home / 1,005,864.58-1,388,065.44-553,155.58

Finding the Fourth Proportional to 1,005,864.58, 1,388,065.44 and 553,155.58

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Solution

The fourth proportional to 1,005,864.58, 1,388,065.44 and 553,155.58 is: 763,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,864.58 : 1,388,065.44 = 553,155.58 : x
  2. Step 2: Convert to fraction form
    1,005,864.58/1,388,065.44 = 553,155.58/x
  3. Step 3: Cross multiply
    1,005,864.58x = 1,388,065.44 × 553,155.58
  4. Step 4: Simplify right side
    1,005,864.58x = 767,816,143,541.16
  5. Step 5: Solve for x
    x = 767,816,143,541.16/1,005,864.58
  6. Step 6: Final answer
    x = 763,339.48

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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.