Home / 1,291,468.08-1,782,225.72-718,508.10

Finding the Fourth Proportional to 1,291,468.08, 1,782,225.72 and 718,508.10

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Solution

The fourth proportional to 1,291,468.08, 1,782,225.72 and 718,508.10 is: 991,541.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,468.08 : 1,782,225.72 = 718,508.10 : x
  2. Step 2: Convert to fraction form
    1,291,468.08/1,782,225.72 = 718,508.10/x
  3. Step 3: Cross multiply
    1,291,468.08x = 1,782,225.72 × 718,508.10
  4. Step 4: Simplify right side
    1,291,468.08x = 1,280,543,615,848.33
  5. Step 5: Solve for x
    x = 1,280,543,615,848.33/1,291,468.08
  6. Step 6: Final answer
    x = 991,541.05

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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.