Home / 736,734.30-1,105,101.45-421,223.10

Finding the Fourth Proportional to 736,734.30, 1,105,101.45 and 421,223.10

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Solution

The fourth proportional to 736,734.30, 1,105,101.45 and 421,223.10 is: 631,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,734.30 : 1,105,101.45 = 421,223.10 : x
  2. Step 2: Convert to fraction form
    736,734.30/1,105,101.45 = 421,223.10/x
  3. Step 3: Cross multiply
    736,734.30x = 1,105,101.45 × 421,223.10
  4. Step 4: Simplify right side
    736,734.30x = 465,494,258,583.50
  5. Step 5: Solve for x
    x = 465,494,258,583.50/736,734.30
  6. Step 6: Final answer
    x = 631,834.65

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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.