Home / 911,777.40-1,258,300.98-549,315.36

Finding the Fourth Proportional to 911,777.40, 1,258,300.98 and 549,315.36

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Solution

The fourth proportional to 911,777.40, 1,258,300.98 and 549,315.36 is: 758,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,777.40 : 1,258,300.98 = 549,315.36 : x
  2. Step 2: Convert to fraction form
    911,777.40/1,258,300.98 = 549,315.36/x
  3. Step 3: Cross multiply
    911,777.40x = 1,258,300.98 × 549,315.36
  4. Step 4: Simplify right side
    911,777.40x = 691,204,055,817.05
  5. Step 5: Solve for x
    x = 691,204,055,817.05/911,777.40
  6. Step 6: Final answer
    x = 758,084.22

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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.