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Finding the Fourth Proportional to 942,998.58, 1,420,798.57 and 853,155.29

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Solution

The fourth proportional to 942,998.58, 1,420,798.57 and 853,155.29 is: 1,285,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,998.58 : 1,420,798.57 = 853,155.29 : x
  2. Step 2: Convert to fraction form
    942,998.58/1,420,798.57 = 853,155.29/x
  3. Step 3: Cross multiply
    942,998.58x = 1,420,798.57 × 853,155.29
  4. Step 4: Simplify right side
    942,998.58x = 1,212,161,817,439.04
  5. Step 5: Solve for x
    x = 1,212,161,817,439.04/942,998.58
  6. Step 6: Final answer
    x = 1,285,433.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.