Home / 738,140.40-1,105,655.40-613,724.40

Finding the Fourth Proportional to 738,140.40, 1,105,655.40 and 613,724.40

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Solution

The fourth proportional to 738,140.40, 1,105,655.40 and 613,724.40 is: 919,293.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,140.40 : 1,105,655.40 = 613,724.40 : x
  2. Step 2: Convert to fraction form
    738,140.40/1,105,655.40 = 613,724.40/x
  3. Step 3: Cross multiply
    738,140.40x = 1,105,655.40 × 613,724.40
  4. Step 4: Simplify right side
    738,140.40x = 678,567,696,971.76
  5. Step 5: Solve for x
    x = 678,567,696,971.76/738,140.40
  6. Step 6: Final answer
    x = 919,293.53

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1.5x scale

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.