Home / 5,428,980.40-8,142,887.40-1,439,892.40

Finding the Fourth Proportional to 5,428,980.40, 8,142,887.40 and 1,439,892.40

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Solution

The fourth proportional to 5,428,980.40, 8,142,887.40 and 1,439,892.40 is: 2,159,683.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,980.40 : 8,142,887.40 = 1,439,892.40 : x
  2. Step 2: Convert to fraction form
    5,428,980.40/8,142,887.40 = 1,439,892.40/x
  3. Step 3: Cross multiply
    5,428,980.40x = 8,142,887.40 × 1,439,892.40
  4. Step 4: Simplify right side
    5,428,980.40x = 11,724,881,681,315.76
  5. Step 5: Solve for x
    x = 11,724,881,681,315.76/5,428,980.40
  6. Step 6: Final answer
    x = 2,159,683.92

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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.