Home / 448,088.80-672,133.20-421,823.20

Finding the Fourth Proportional to 448,088.80, 672,133.20 and 421,823.20

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Solution

The fourth proportional to 448,088.80, 672,133.20 and 421,823.20 is: 632,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,088.80 : 672,133.20 = 421,823.20 : x
  2. Step 2: Convert to fraction form
    448,088.80/672,133.20 = 421,823.20/x
  3. Step 3: Cross multiply
    448,088.80x = 672,133.20 × 421,823.20
  4. Step 4: Simplify right side
    448,088.80x = 283,521,377,250.24
  5. Step 5: Solve for x
    x = 283,521,377,250.24/448,088.80
  6. Step 6: Final answer
    x = 632,734.80

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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.