Home / 911,775.40-1,258,298.22-549,313.36

Finding the Fourth Proportional to 911,775.40, 1,258,298.22 and 549,313.36

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Solution

The fourth proportional to 911,775.40, 1,258,298.22 and 549,313.36 is: 758,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,775.40 : 1,258,298.22 = 549,313.36 : x
  2. Step 2: Convert to fraction form
    911,775.40/1,258,298.22 = 549,313.36/x
  3. Step 3: Cross multiply
    911,775.40x = 1,258,298.22 × 549,313.36
  4. Step 4: Simplify right side
    911,775.40x = 691,200,023,110.22
  5. Step 5: Solve for x
    x = 691,200,023,110.22/911,775.40
  6. Step 6: Final answer
    x = 758,081.46

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1.5x scale

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.