Home / 740,658.84-1,022,172.14-418,428.08

Finding the Fourth Proportional to 740,658.84, 1,022,172.14 and 418,428.08

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Solution

The fourth proportional to 740,658.84, 1,022,172.14 and 418,428.08 is: 577,466.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,658.84 : 1,022,172.14 = 418,428.08 : x
  2. Step 2: Convert to fraction form
    740,658.84/1,022,172.14 = 418,428.08/x
  3. Step 3: Cross multiply
    740,658.84x = 1,022,172.14 × 418,428.08
  4. Step 4: Simplify right side
    740,658.84x = 427,705,525,969.69
  5. Step 5: Solve for x
    x = 427,705,525,969.69/740,658.84
  6. Step 6: Final answer
    x = 577,466.31

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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.