Home / 1,005,840.77-1,388,018.03-570,287.43

Finding the Fourth Proportional to 1,005,840.77, 1,388,018.03 and 570,287.43

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Solution

The fourth proportional to 1,005,840.77, 1,388,018.03 and 570,287.43 is: 786,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,840.77 : 1,388,018.03 = 570,287.43 : x
  2. Step 2: Convert to fraction form
    1,005,840.77/1,388,018.03 = 570,287.43/x
  3. Step 3: Cross multiply
    1,005,840.77x = 1,388,018.03 × 570,287.43
  4. Step 4: Simplify right side
    1,005,840.77x = 791,569,232,270.93
  5. Step 5: Solve for x
    x = 791,569,232,270.93/1,005,840.77
  6. Step 6: Final answer
    x = 786,972.71

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Double scale
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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.