Home / 727,579.80-1,091,369.70-612,106.20

Finding the Fourth Proportional to 727,579.80, 1,091,369.70 and 612,106.20

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Solution

The fourth proportional to 727,579.80, 1,091,369.70 and 612,106.20 is: 918,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,579.80 : 1,091,369.70 = 612,106.20 : x
  2. Step 2: Convert to fraction form
    727,579.80/1,091,369.70 = 612,106.20/x
  3. Step 3: Cross multiply
    727,579.80x = 1,091,369.70 × 612,106.20
  4. Step 4: Simplify right side
    727,579.80x = 668,034,159,862.14
  5. Step 5: Solve for x
    x = 668,034,159,862.14/727,579.80
  6. Step 6: Final answer
    x = 918,159.30

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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.