Home / 1,292,254.36-1,938,381.08-345,600.50

Finding the Fourth Proportional to 1,292,254.36, 1,938,381.08 and 345,600.50

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Solution

The fourth proportional to 1,292,254.36, 1,938,381.08 and 345,600.50 is: 518,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,254.36 : 1,938,381.08 = 345,600.50 : x
  2. Step 2: Convert to fraction form
    1,292,254.36/1,938,381.08 = 345,600.50/x
  3. Step 3: Cross multiply
    1,292,254.36x = 1,938,381.08 × 345,600.50
  4. Step 4: Simplify right side
    1,292,254.36x = 669,905,470,438.54
  5. Step 5: Solve for x
    x = 669,905,470,438.54/1,292,254.36
  6. Step 6: Final answer
    x = 518,400.63

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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.