Home / 953,845.40-1,430,330.70-421,092.20

Finding the Fourth Proportional to 953,845.40, 1,430,330.70 and 421,092.20

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Solution

The fourth proportional to 953,845.40, 1,430,330.70 and 421,092.20 is: 631,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,845.40 : 1,430,330.70 = 421,092.20 : x
  2. Step 2: Convert to fraction form
    953,845.40/1,430,330.70 = 421,092.20/x
  3. Step 3: Cross multiply
    953,845.40x = 1,430,330.70 × 421,092.20
  4. Step 4: Simplify right side
    953,845.40x = 602,301,101,190.54
  5. Step 5: Solve for x
    x = 602,301,101,190.54/953,845.40
  6. Step 6: Final answer
    x = 631,445.20

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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.