Home / 1,005,979.48-1,388,263.26-553,278.04

Finding the Fourth Proportional to 1,005,979.48, 1,388,263.26 and 553,278.04

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Solution

The fourth proportional to 1,005,979.48, 1,388,263.26 and 553,278.04 is: 763,530.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,979.48 : 1,388,263.26 = 553,278.04 : x
  2. Step 2: Convert to fraction form
    1,005,979.48/1,388,263.26 = 553,278.04/x
  3. Step 3: Cross multiply
    1,005,979.48x = 1,388,263.26 × 553,278.04
  4. Step 4: Simplify right side
    1,005,979.48x = 768,095,575,496.81
  5. Step 5: Solve for x
    x = 768,095,575,496.81/1,005,979.48
  6. Step 6: Final answer
    x = 763,530.06

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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.