Home / 1,005,847.08-1,388,041.29-553,138.08

Finding the Fourth Proportional to 1,005,847.08, 1,388,041.29 and 553,138.08

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Solution

The fourth proportional to 1,005,847.08, 1,388,041.29 and 553,138.08 is: 763,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,847.08 : 1,388,041.29 = 553,138.08 : x
  2. Step 2: Convert to fraction form
    1,005,847.08/1,388,041.29 = 553,138.08/x
  3. Step 3: Cross multiply
    1,005,847.08x = 1,388,041.29 × 553,138.08
  4. Step 4: Simplify right side
    1,005,847.08x = 767,778,494,111.32
  5. Step 5: Solve for x
    x = 767,778,494,111.32/1,005,847.08
  6. Step 6: Final answer
    x = 763,315.33

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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.