Home / 989,427.60-1,484,141.40-883,139.40

Finding the Fourth Proportional to 989,427.60, 1,484,141.40 and 883,139.40

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Solution

The fourth proportional to 989,427.60, 1,484,141.40 and 883,139.40 is: 1,324,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,427.60 : 1,484,141.40 = 883,139.40 : x
  2. Step 2: Convert to fraction form
    989,427.60/1,484,141.40 = 883,139.40/x
  3. Step 3: Cross multiply
    989,427.60x = 1,484,141.40 × 883,139.40
  4. Step 4: Simplify right side
    989,427.60x = 1,310,703,745,511.16
  5. Step 5: Solve for x
    x = 1,310,703,745,511.16/989,427.60
  6. Step 6: Final answer
    x = 1,324,709.10

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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.