Home / 711,517.42-1,065,565.76-406,988.60

Finding the Fourth Proportional to 711,517.42, 1,065,565.76 and 406,988.60

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Solution

The fourth proportional to 711,517.42, 1,065,565.76 and 406,988.60 is: 609,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,517.42 : 1,065,565.76 = 406,988.60 : x
  2. Step 2: Convert to fraction form
    711,517.42/1,065,565.76 = 406,988.60/x
  3. Step 3: Cross multiply
    711,517.42x = 1,065,565.76 × 406,988.60
  4. Step 4: Simplify right side
    711,517.42x = 433,673,116,870.34
  5. Step 5: Solve for x
    x = 433,673,116,870.34/711,517.42
  6. Step 6: Final answer
    x = 609,504.57

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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.