Home / 689,039.17-1,033,696.72-385,864.47

Finding the Fourth Proportional to 689,039.17, 1,033,696.72 and 385,864.47

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Solution

The fourth proportional to 689,039.17, 1,033,696.72 and 385,864.47 is: 578,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,039.17 : 1,033,696.72 = 385,864.47 : x
  2. Step 2: Convert to fraction form
    689,039.17/1,033,696.72 = 385,864.47/x
  3. Step 3: Cross multiply
    689,039.17x = 1,033,696.72 × 385,864.47
  4. Step 4: Simplify right side
    689,039.17x = 398,866,834,746.76
  5. Step 5: Solve for x
    x = 398,866,834,746.76/689,039.17
  6. Step 6: Final answer
    x = 578,873.96

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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.