Home / 682,367.40-1,021,995.90-402,431.40

Finding the Fourth Proportional to 682,367.40, 1,021,995.90 and 402,431.40

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Solution

The fourth proportional to 682,367.40, 1,021,995.90 and 402,431.40 is: 602,729.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,367.40 : 1,021,995.90 = 402,431.40 : x
  2. Step 2: Convert to fraction form
    682,367.40/1,021,995.90 = 402,431.40/x
  3. Step 3: Cross multiply
    682,367.40x = 1,021,995.90 × 402,431.40
  4. Step 4: Simplify right side
    682,367.40x = 411,283,240,831.26
  5. Step 5: Solve for x
    x = 411,283,240,831.26/682,367.40
  6. Step 6: Final answer
    x = 602,729.91

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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.