Home / 879,137.28-1,213,217.04-476,729.28

Finding the Fourth Proportional to 879,137.28, 1,213,217.04 and 476,729.28

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Solution

The fourth proportional to 879,137.28, 1,213,217.04 and 476,729.28 is: 657,890.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,137.28 : 1,213,217.04 = 476,729.28 : x
  2. Step 2: Convert to fraction form
    879,137.28/1,213,217.04 = 476,729.28/x
  3. Step 3: Cross multiply
    879,137.28x = 1,213,217.04 × 476,729.28
  4. Step 4: Simplify right side
    879,137.28x = 578,376,085,962.93
  5. Step 5: Solve for x
    x = 578,376,085,962.93/879,137.28
  6. Step 6: Final answer
    x = 657,890.52

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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.