Home / 491,002.04-732,918.56-421,329.08

Finding the Fourth Proportional to 491,002.04, 732,918.56 and 421,329.08

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Solution

The fourth proportional to 491,002.04, 732,918.56 and 421,329.08 is: 628,917.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,002.04 : 732,918.56 = 421,329.08 : x
  2. Step 2: Convert to fraction form
    491,002.04/732,918.56 = 421,329.08/x
  3. Step 3: Cross multiply
    491,002.04x = 732,918.56 × 421,329.08
  4. Step 4: Simplify right side
    491,002.04x = 308,799,902,599.73
  5. Step 5: Solve for x
    x = 308,799,902,599.73/491,002.04
  6. Step 6: Final answer
    x = 628,917.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.