Home / 402,911.40-604,367.10-122,392.20

Finding the Fourth Proportional to 402,911.40, 604,367.10 and 122,392.20

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Solution

The fourth proportional to 402,911.40, 604,367.10 and 122,392.20 is: 183,588.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,911.40 : 604,367.10 = 122,392.20 : x
  2. Step 2: Convert to fraction form
    402,911.40/604,367.10 = 122,392.20/x
  3. Step 3: Cross multiply
    402,911.40x = 604,367.10 × 122,392.20
  4. Step 4: Simplify right side
    402,911.40x = 73,969,818,976.62
  5. Step 5: Solve for x
    x = 73,969,818,976.62/402,911.40
  6. Step 6: Final answer
    x = 183,588.30

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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.