Home / 904,915.76-1,355,306.52-431,934.08

Finding the Fourth Proportional to 904,915.76, 1,355,306.52 and 431,934.08

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Solution

The fourth proportional to 904,915.76, 1,355,306.52 and 431,934.08 is: 646,914.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,915.76 : 1,355,306.52 = 431,934.08 : x
  2. Step 2: Convert to fraction form
    904,915.76/1,355,306.52 = 431,934.08/x
  3. Step 3: Cross multiply
    904,915.76x = 1,355,306.52 × 431,934.08
  4. Step 4: Simplify right side
    904,915.76x = 585,403,074,834.20
  5. Step 5: Solve for x
    x = 585,403,074,834.20/904,915.76
  6. Step 6: Final answer
    x = 646,914.44

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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.