Home / 1,643,430.28-2,267,929.02-908,379.64

Finding the Fourth Proportional to 1,643,430.28, 2,267,929.02 and 908,379.64

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Solution

The fourth proportional to 1,643,430.28, 2,267,929.02 and 908,379.64 is: 1,253,561.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,430.28 : 2,267,929.02 = 908,379.64 : x
  2. Step 2: Convert to fraction form
    1,643,430.28/2,267,929.02 = 908,379.64/x
  3. Step 3: Cross multiply
    1,643,430.28x = 2,267,929.02 × 908,379.64
  4. Step 4: Simplify right side
    1,643,430.28x = 2,060,140,546,733.15
  5. Step 5: Solve for x
    x = 2,060,140,546,733.15/1,643,430.28
  6. Step 6: Final answer
    x = 1,253,561.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.