Home / 648,685.49-895,180.62-354,335.45

Finding the Fourth Proportional to 648,685.49, 895,180.62 and 354,335.45

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Solution

The fourth proportional to 648,685.49, 895,180.62 and 354,335.45 is: 488,979.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,685.49 : 895,180.62 = 354,335.45 : x
  2. Step 2: Convert to fraction form
    648,685.49/895,180.62 = 354,335.45/x
  3. Step 3: Cross multiply
    648,685.49x = 895,180.62 × 354,335.45
  4. Step 4: Simplify right side
    648,685.49x = 317,194,223,343.08
  5. Step 5: Solve for x
    x = 317,194,223,343.08/648,685.49
  6. Step 6: Final answer
    x = 488,979.99

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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.