Home / 953,280-1,430,116.92-279,383.40

Finding the Fourth Proportional to 953,280, 1,430,116.92 and 279,383.40

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Solution

The fourth proportional to 953,280, 1,430,116.92 and 279,383.40 is: 419,132.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,280 : 1,430,116.92 = 279,383.40 : x
  2. Step 2: Convert to fraction form
    953,280/1,430,116.92 = 279,383.40/x
  3. Step 3: Cross multiply
    953,280x = 1,430,116.92 × 279,383.40
  4. Step 4: Simplify right side
    953,280x = 399,550,927,507.13
  5. Step 5: Solve for x
    x = 399,550,927,507.13/953,280
  6. Step 6: Final answer
    x = 419,132.81

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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.