Home / 688,985.46-1,033,411.37-209,217.42

Finding the Fourth Proportional to 688,985.46, 1,033,411.37 and 209,217.42

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Solution

The fourth proportional to 688,985.46, 1,033,411.37 and 209,217.42 is: 313,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,985.46 : 1,033,411.37 = 209,217.42 : x
  2. Step 2: Convert to fraction form
    688,985.46/1,033,411.37 = 209,217.42/x
  3. Step 3: Cross multiply
    688,985.46x = 1,033,411.37 × 209,217.42
  4. Step 4: Simplify right side
    688,985.46x = 216,207,660,630.07
  5. Step 5: Solve for x
    x = 216,207,660,630.07/688,985.46
  6. Step 6: Final answer
    x = 313,805.84

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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.