Home / 993,821.80-1,490,732.70-790,868.20

Finding the Fourth Proportional to 993,821.80, 1,490,732.70 and 790,868.20

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Solution

The fourth proportional to 993,821.80, 1,490,732.70 and 790,868.20 is: 1,186,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,821.80 : 1,490,732.70 = 790,868.20 : x
  2. Step 2: Convert to fraction form
    993,821.80/1,490,732.70 = 790,868.20/x
  3. Step 3: Cross multiply
    993,821.80x = 1,490,732.70 × 790,868.20
  4. Step 4: Simplify right side
    993,821.80x = 1,178,973,087,130.14
  5. Step 5: Solve for x
    x = 1,178,973,087,130.14/993,821.80
  6. Step 6: Final answer
    x = 1,186,302.30

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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.