Home / 1,000,407.12-1,380,693.30-570,588.72

Finding the Fourth Proportional to 1,000,407.12, 1,380,693.30 and 570,588.72

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Solution

The fourth proportional to 1,000,407.12, 1,380,693.30 and 570,588.72 is: 787,487.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,407.12 : 1,380,693.30 = 570,588.72 : x
  2. Step 2: Convert to fraction form
    1,000,407.12/1,380,693.30 = 570,588.72/x
  3. Step 3: Cross multiply
    1,000,407.12x = 1,380,693.30 × 570,588.72
  4. Step 4: Simplify right side
    1,000,407.12x = 787,808,022,759.58
  5. Step 5: Solve for x
    x = 787,808,022,759.58/1,000,407.12
  6. Step 6: Final answer
    x = 787,487.42

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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.