Home / 903,520.17-1,355,694.12-391,341.96

Finding the Fourth Proportional to 903,520.17, 1,355,694.12 and 391,341.96

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Solution

The fourth proportional to 903,520.17, 1,355,694.12 and 391,341.96 is: 587,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,520.17 : 1,355,694.12 = 391,341.96 : x
  2. Step 2: Convert to fraction form
    903,520.17/1,355,694.12 = 391,341.96/x
  3. Step 3: Cross multiply
    903,520.17x = 1,355,694.12 × 391,341.96
  4. Step 4: Simplify right side
    903,520.17x = 530,539,994,081.28
  5. Step 5: Solve for x
    x = 530,539,994,081.28/903,520.17
  6. Step 6: Final answer
    x = 587,192.20

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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.