Home / 889,819.85-1,334,529.90-409,587.45

Finding the Fourth Proportional to 889,819.85, 1,334,529.90 and 409,587.45

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Solution

The fourth proportional to 889,819.85, 1,334,529.90 and 409,587.45 is: 614,289.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,819.85 : 1,334,529.90 = 409,587.45 : x
  2. Step 2: Convert to fraction form
    889,819.85/1,334,529.90 = 409,587.45/x
  3. Step 3: Cross multiply
    889,819.85x = 1,334,529.90 × 409,587.45
  4. Step 4: Simplify right side
    889,819.85x = 546,606,698,689.76
  5. Step 5: Solve for x
    x = 546,606,698,689.76/889,819.85
  6. Step 6: Final answer
    x = 614,289.17

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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.