Home / 911,776.40-1,258,299.60-549,314.36

Finding the Fourth Proportional to 911,776.40, 1,258,299.60 and 549,314.36

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Solution

The fourth proportional to 911,776.40, 1,258,299.60 and 549,314.36 is: 758,082.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,776.40 : 1,258,299.60 = 549,314.36 : x
  2. Step 2: Convert to fraction form
    911,776.40/1,258,299.60 = 549,314.36/x
  3. Step 3: Cross multiply
    911,776.40x = 1,258,299.60 × 549,314.36
  4. Step 4: Simplify right side
    911,776.40x = 691,202,039,462.26
  5. Step 5: Solve for x
    x = 691,202,039,462.26/911,776.40
  6. Step 6: Final answer
    x = 758,082.84

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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.