Home / 899,228.57-1,240,933.48-491,333.32

Finding the Fourth Proportional to 899,228.57, 1,240,933.48 and 491,333.32

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Solution

The fourth proportional to 899,228.57, 1,240,933.48 and 491,333.32 is: 678,038.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,228.57 : 1,240,933.48 = 491,333.32 : x
  2. Step 2: Convert to fraction form
    899,228.57/1,240,933.48 = 491,333.32/x
  3. Step 3: Cross multiply
    899,228.57x = 1,240,933.48 × 491,333.32
  4. Step 4: Simplify right side
    899,228.57x = 609,711,962,296.89
  5. Step 5: Solve for x
    x = 609,711,962,296.89/899,228.57
  6. Step 6: Final answer
    x = 678,038.91

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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.