Home / 1,071,565.23-1,605,188.54-711,938.60

Finding the Fourth Proportional to 1,071,565.23, 1,605,188.54 and 711,938.60

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Solution

The fourth proportional to 1,071,565.23, 1,605,188.54 and 711,938.60 is: 1,066,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,565.23 : 1,605,188.54 = 711,938.60 : x
  2. Step 2: Convert to fraction form
    1,071,565.23/1,605,188.54 = 711,938.60/x
  3. Step 3: Cross multiply
    1,071,565.23x = 1,605,188.54 × 711,938.60
  4. Step 4: Simplify right side
    1,071,565.23x = 1,142,795,670,318.01
  5. Step 5: Solve for x
    x = 1,142,795,670,318.01/1,071,565.23
  6. Step 6: Final answer
    x = 1,066,473.27

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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.