Home / 992,455.80-1,488,683.70-900,929.85

Finding the Fourth Proportional to 992,455.80, 1,488,683.70 and 900,929.85

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Solution

The fourth proportional to 992,455.80, 1,488,683.70 and 900,929.85 is: 1,351,394.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,455.80 : 1,488,683.70 = 900,929.85 : x
  2. Step 2: Convert to fraction form
    992,455.80/1,488,683.70 = 900,929.85/x
  3. Step 3: Cross multiply
    992,455.80x = 1,488,683.70 × 900,929.85
  4. Step 4: Simplify right side
    992,455.80x = 1,341,199,582,538.44
  5. Step 5: Solve for x
    x = 1,341,199,582,538.44/992,455.80
  6. Step 6: Final answer
    x = 1,351,394.78

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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.