Home / 713,217.81-1,069,191.74-257,707.45

Finding the Fourth Proportional to 713,217.81, 1,069,191.74 and 257,707.45

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Solution

The fourth proportional to 713,217.81, 1,069,191.74 and 257,707.45 is: 386,331.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,217.81 : 1,069,191.74 = 257,707.45 : x
  2. Step 2: Convert to fraction form
    713,217.81/1,069,191.74 = 257,707.45/x
  3. Step 3: Cross multiply
    713,217.81x = 1,069,191.74 × 257,707.45
  4. Step 4: Simplify right side
    713,217.81x = 275,538,677,126.23
  5. Step 5: Solve for x
    x = 275,538,677,126.23/713,217.81
  6. Step 6: Final answer
    x = 386,331.74

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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.