Home / 918,416.80-1,377,625.20-664,506.10

Finding the Fourth Proportional to 918,416.80, 1,377,625.20 and 664,506.10

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Solution

The fourth proportional to 918,416.80, 1,377,625.20 and 664,506.10 is: 996,759.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,416.80 : 1,377,625.20 = 664,506.10 : x
  2. Step 2: Convert to fraction form
    918,416.80/1,377,625.20 = 664,506.10/x
  3. Step 3: Cross multiply
    918,416.80x = 1,377,625.20 × 664,506.10
  4. Step 4: Simplify right side
    918,416.80x = 915,440,348,913.72
  5. Step 5: Solve for x
    x = 915,440,348,913.72/918,416.80
  6. Step 6: Final answer
    x = 996,759.15

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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.