Home / 899,359.71-1,241,113.79-491,464.06

Finding the Fourth Proportional to 899,359.71, 1,241,113.79 and 491,464.06

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Solution

The fourth proportional to 899,359.71, 1,241,113.79 and 491,464.06 is: 678,218.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,359.71 : 1,241,113.79 = 491,464.06 : x
  2. Step 2: Convert to fraction form
    899,359.71/1,241,113.79 = 491,464.06/x
  3. Step 3: Cross multiply
    899,359.71x = 1,241,113.79 × 491,464.06
  4. Step 4: Simplify right side
    899,359.71x = 609,962,820,281.26
  5. Step 5: Solve for x
    x = 609,962,820,281.26/899,359.71
  6. Step 6: Final answer
    x = 678,218.98

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1.5x scale

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.