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Finding the Fourth Proportional to 557,559.94, 769,436.40 and 302,911.06

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Solution

The fourth proportional to 557,559.94, 769,436.40 and 302,911.06 is: 418,019.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,559.94 : 769,436.40 = 302,911.06 : x
  2. Step 2: Convert to fraction form
    557,559.94/769,436.40 = 302,911.06/x
  3. Step 3: Cross multiply
    557,559.94x = 769,436.40 × 302,911.06
  4. Step 4: Simplify right side
    557,559.94x = 233,070,795,526.58
  5. Step 5: Solve for x
    x = 233,070,795,526.58/557,559.94
  6. Step 6: Final answer
    x = 418,019.26

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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.