Home / 891,048.16-1,336,818.88-411,422.72

Finding the Fourth Proportional to 891,048.16, 1,336,818.88 and 411,422.72

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Solution

The fourth proportional to 891,048.16, 1,336,818.88 and 411,422.72 is: 617,247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,048.16 : 1,336,818.88 = 411,422.72 : x
  2. Step 2: Convert to fraction form
    891,048.16/1,336,818.88 = 411,422.72/x
  3. Step 3: Cross multiply
    891,048.16x = 1,336,818.88 × 411,422.72
  4. Step 4: Simplify right side
    891,048.16x = 549,997,659,756.95
  5. Step 5: Solve for x
    x = 549,997,659,756.95/891,048.16
  6. Step 6: Final answer
    x = 617,247.96

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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.