Home / 1,430,690.28-1,974,346.98-818,840.58

Finding the Fourth Proportional to 1,430,690.28, 1,974,346.98 and 818,840.58

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Solution

The fourth proportional to 1,430,690.28, 1,974,346.98 and 818,840.58 is: 1,129,996.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,690.28 : 1,974,346.98 = 818,840.58 : x
  2. Step 2: Convert to fraction form
    1,430,690.28/1,974,346.98 = 818,840.58/x
  3. Step 3: Cross multiply
    1,430,690.28x = 1,974,346.98 × 818,840.58
  4. Step 4: Simplify right side
    1,430,690.28x = 1,616,675,426,224.45
  5. Step 5: Solve for x
    x = 1,616,675,426,224.45/1,430,690.28
  6. Step 6: Final answer
    x = 1,129,996.79

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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.