Home / 887,774.80-1,330,787.40-438,127.60

Finding the Fourth Proportional to 887,774.80, 1,330,787.40 and 438,127.60

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Solution

The fourth proportional to 887,774.80, 1,330,787.40 and 438,127.60 is: 656,759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,774.80 : 1,330,787.40 = 438,127.60 : x
  2. Step 2: Convert to fraction form
    887,774.80/1,330,787.40 = 438,127.60/x
  3. Step 3: Cross multiply
    887,774.80x = 1,330,787.40 × 438,127.60
  4. Step 4: Simplify right side
    887,774.80x = 583,054,689,672.24
  5. Step 5: Solve for x
    x = 583,054,689,672.24/887,774.80
  6. Step 6: Final answer
    x = 656,759.68

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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.