Home / 677,886.72-1,017,164.16-479,482.08

Finding the Fourth Proportional to 677,886.72, 1,017,164.16 and 479,482.08

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Solution

The fourth proportional to 677,886.72, 1,017,164.16 and 479,482.08 is: 719,459.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,886.72 : 1,017,164.16 = 479,482.08 : x
  2. Step 2: Convert to fraction form
    677,886.72/1,017,164.16 = 479,482.08/x
  3. Step 3: Cross multiply
    677,886.72x = 1,017,164.16 × 479,482.08
  4. Step 4: Simplify right side
    677,886.72x = 487,711,987,138.25
  5. Step 5: Solve for x
    x = 487,711,987,138.25/677,886.72
  6. Step 6: Final answer
    x = 719,459.42

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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.