Home / 1,000,357.09-1,380,624.20-570,538.69

Finding the Fourth Proportional to 1,000,357.09, 1,380,624.20 and 570,538.69

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Solution

The fourth proportional to 1,000,357.09, 1,380,624.20 and 570,538.69 is: 787,418.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,357.09 : 1,380,624.20 = 570,538.69 : x
  2. Step 2: Convert to fraction form
    1,000,357.09/1,380,624.20 = 570,538.69/x
  3. Step 3: Cross multiply
    1,000,357.09x = 1,380,624.20 × 570,538.69
  4. Step 4: Simplify right side
    1,000,357.09x = 787,699,522,450.30
  5. Step 5: Solve for x
    x = 787,699,522,450.30/1,000,357.09
  6. Step 6: Final answer
    x = 787,418.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.