Home / 702,918.10-970,031.60-380,628.23

Finding the Fourth Proportional to 702,918.10, 970,031.60 and 380,628.23

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Solution

The fourth proportional to 702,918.10, 970,031.60 and 380,628.23 is: 525,269.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,918.10 : 970,031.60 = 380,628.23 : x
  2. Step 2: Convert to fraction form
    702,918.10/970,031.60 = 380,628.23/x
  3. Step 3: Cross multiply
    702,918.10x = 970,031.60 × 380,628.23
  4. Step 4: Simplify right side
    702,918.10x = 369,221,410,952.07
  5. Step 5: Solve for x
    x = 369,221,410,952.07/702,918.10
  6. Step 6: Final answer
    x = 525,269.46

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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.