Home / 1,069,191.24-1,475,483.40-639,471.36

Finding the Fourth Proportional to 1,069,191.24, 1,475,483.40 and 639,471.36

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Solution

The fourth proportional to 1,069,191.24, 1,475,483.40 and 639,471.36 is: 882,470.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,191.24 : 1,475,483.40 = 639,471.36 : x
  2. Step 2: Convert to fraction form
    1,069,191.24/1,475,483.40 = 639,471.36/x
  3. Step 3: Cross multiply
    1,069,191.24x = 1,475,483.40 × 639,471.36
  4. Step 4: Simplify right side
    1,069,191.24x = 943,529,376,455.42
  5. Step 5: Solve for x
    x = 943,529,376,455.42/1,069,191.24
  6. Step 6: Final answer
    x = 882,470.17

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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.