Home / 1,069,480-1,475,882.40-639,778.24

Finding the Fourth Proportional to 1,069,480, 1,475,882.40 and 639,778.24

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Solution

The fourth proportional to 1,069,480, 1,475,882.40 and 639,778.24 is: 882,893.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,480 : 1,475,882.40 = 639,778.24 : x
  2. Step 2: Convert to fraction form
    1,069,480/1,475,882.40 = 639,778.24/x
  3. Step 3: Cross multiply
    1,069,480x = 1,475,882.40 × 639,778.24
  4. Step 4: Simplify right side
    1,069,480x = 944,237,444,318.98
  5. Step 5: Solve for x
    x = 944,237,444,318.98/1,069,480
  6. Step 6: Final answer
    x = 882,893.97

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1.5x scale

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.