Home / 647,523.20-971,284.80-458,566.40

Finding the Fourth Proportional to 647,523.20, 971,284.80 and 458,566.40

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Solution

The fourth proportional to 647,523.20, 971,284.80 and 458,566.40 is: 687,849.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,523.20 : 971,284.80 = 458,566.40 : x
  2. Step 2: Convert to fraction form
    647,523.20/971,284.80 = 458,566.40/x
  3. Step 3: Cross multiply
    647,523.20x = 971,284.80 × 458,566.40
  4. Step 4: Simplify right side
    647,523.20x = 445,398,574,110.72
  5. Step 5: Solve for x
    x = 445,398,574,110.72/647,523.20
  6. Step 6: Final answer
    x = 687,849.60

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Similar ratio
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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.