Home / 910,858.90-1,364,101.35-489,205.30

Finding the Fourth Proportional to 910,858.90, 1,364,101.35 and 489,205.30

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Solution

The fourth proportional to 910,858.90, 1,364,101.35 and 489,205.30 is: 732,633.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,858.90 : 1,364,101.35 = 489,205.30 : x
  2. Step 2: Convert to fraction form
    910,858.90/1,364,101.35 = 489,205.30/x
  3. Step 3: Cross multiply
    910,858.90x = 1,364,101.35 × 489,205.30
  4. Step 4: Simplify right side
    910,858.90x = 667,325,610,157.16
  5. Step 5: Solve for x
    x = 667,325,610,157.16/910,858.90
  6. Step 6: Final answer
    x = 732,633.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.