Home / 1,430,997.12-1,974,810.24-786,478.50

Finding the Fourth Proportional to 1,430,997.12, 1,974,810.24 and 786,478.50

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Solution

The fourth proportional to 1,430,997.12, 1,974,810.24 and 786,478.50 is: 1,085,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,997.12 : 1,974,810.24 = 786,478.50 : x
  2. Step 2: Convert to fraction form
    1,430,997.12/1,974,810.24 = 786,478.50/x
  3. Step 3: Cross multiply
    1,430,997.12x = 1,974,810.24 × 786,478.50
  4. Step 4: Simplify right side
    1,430,997.12x = 1,553,145,795,339.84
  5. Step 5: Solve for x
    x = 1,553,145,795,339.84/1,430,997.12
  6. Step 6: Final answer
    x = 1,085,359.13

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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.