Home / 669,894.40-1,005,694.26-434,223.28

Finding the Fourth Proportional to 669,894.40, 1,005,694.26 and 434,223.28

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Solution

The fourth proportional to 669,894.40, 1,005,694.26 and 434,223.28 is: 651,887.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,894.40 : 1,005,694.26 = 434,223.28 : x
  2. Step 2: Convert to fraction form
    669,894.40/1,005,694.26 = 434,223.28/x
  3. Step 3: Cross multiply
    669,894.40x = 1,005,694.26 × 434,223.28
  4. Step 4: Simplify right side
    669,894.40x = 436,695,860,254.37
  5. Step 5: Solve for x
    x = 436,695,860,254.37/669,894.40
  6. Step 6: Final answer
    x = 651,887.61

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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.