Home / 872,806.59-1,309,156.70-417,721.32

Finding the Fourth Proportional to 872,806.59, 1,309,156.70 and 417,721.32

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Solution

The fourth proportional to 872,806.59, 1,309,156.70 and 417,721.32 is: 626,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,806.59 : 1,309,156.70 = 417,721.32 : x
  2. Step 2: Convert to fraction form
    872,806.59/1,309,156.70 = 417,721.32/x
  3. Step 3: Cross multiply
    872,806.59x = 1,309,156.70 × 417,721.32
  4. Step 4: Simplify right side
    872,806.59x = 546,862,662,722.24
  5. Step 5: Solve for x
    x = 546,862,662,722.24/872,806.59
  6. Step 6: Final answer
    x = 626,556.52

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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.