Home / 1,069,479-1,475,881.02-639,777.24

Finding the Fourth Proportional to 1,069,479, 1,475,881.02 and 639,777.24

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Solution

The fourth proportional to 1,069,479, 1,475,881.02 and 639,777.24 is: 882,892.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,479 : 1,475,881.02 = 639,777.24 : x
  2. Step 2: Convert to fraction form
    1,069,479/1,475,881.02 = 639,777.24/x
  3. Step 3: Cross multiply
    1,069,479x = 1,475,881.02 × 639,777.24
  4. Step 4: Simplify right side
    1,069,479x = 944,235,085,543.99
  5. Step 5: Solve for x
    x = 944,235,085,543.99/1,069,479
  6. Step 6: Final answer
    x = 882,892.59

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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.