Home / 1,219,570.20-1,829,061.12-509,213.16

Finding the Fourth Proportional to 1,219,570.20, 1,829,061.12 and 509,213.16

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Solution

The fourth proportional to 1,219,570.20, 1,829,061.12 and 509,213.16 is: 763,696.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,570.20 : 1,829,061.12 = 509,213.16 : x
  2. Step 2: Convert to fraction form
    1,219,570.20/1,829,061.12 = 509,213.16/x
  3. Step 3: Cross multiply
    1,219,570.20x = 1,829,061.12 × 509,213.16
  4. Step 4: Simplify right side
    1,219,570.20x = 931,381,992,748.34
  5. Step 5: Solve for x
    x = 931,381,992,748.34/1,219,570.20
  6. Step 6: Final answer
    x = 763,696.91

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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.