Home / 664,072.66-916,416.02-377,592.74

Finding the Fourth Proportional to 664,072.66, 916,416.02 and 377,592.74

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Solution

The fourth proportional to 664,072.66, 916,416.02 and 377,592.74 is: 521,075.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,072.66 : 916,416.02 = 377,592.74 : x
  2. Step 2: Convert to fraction form
    664,072.66/916,416.02 = 377,592.74/x
  3. Step 3: Cross multiply
    664,072.66x = 916,416.02 × 377,592.74
  4. Step 4: Simplify right side
    664,072.66x = 346,032,035,971.70
  5. Step 5: Solve for x
    x = 346,032,035,971.70/664,072.66
  6. Step 6: Final answer
    x = 521,075.56

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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.