Home / 489,190.20-733,785.30-209,254.20

Finding the Fourth Proportional to 489,190.20, 733,785.30 and 209,254.20

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Solution

The fourth proportional to 489,190.20, 733,785.30 and 209,254.20 is: 313,881.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,190.20 : 733,785.30 = 209,254.20 : x
  2. Step 2: Convert to fraction form
    489,190.20/733,785.30 = 209,254.20/x
  3. Step 3: Cross multiply
    489,190.20x = 733,785.30 × 209,254.20
  4. Step 4: Simplify right side
    489,190.20x = 153,547,655,923.26
  5. Step 5: Solve for x
    x = 153,547,655,923.26/489,190.20
  6. Step 6: Final answer
    x = 313,881.30

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Double scale
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Similar ratio
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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.