Home / 914,808-1,262,416.20-506,906.28

Finding the Fourth Proportional to 914,808, 1,262,416.20 and 506,906.28

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Solution

The fourth proportional to 914,808, 1,262,416.20 and 506,906.28 is: 699,520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,808 : 1,262,416.20 = 506,906.28 : x
  2. Step 2: Convert to fraction form
    914,808/1,262,416.20 = 506,906.28/x
  3. Step 3: Cross multiply
    914,808x = 1,262,416.20 × 506,906.28
  4. Step 4: Simplify right side
    914,808x = 639,926,699,753.74
  5. Step 5: Solve for x
    x = 639,926,699,753.74/914,808
  6. Step 6: Final answer
    x = 699,520.23

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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.