Home / 557,927.58-769,975.83-312,935.34

Finding the Fourth Proportional to 557,927.58, 769,975.83 and 312,935.34

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Solution

The fourth proportional to 557,927.58, 769,975.83 and 312,935.34 is: 431,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,927.58 : 769,975.83 = 312,935.34 : x
  2. Step 2: Convert to fraction form
    557,927.58/769,975.83 = 312,935.34/x
  3. Step 3: Cross multiply
    557,927.58x = 769,975.83 × 312,935.34
  4. Step 4: Simplify right side
    557,927.58x = 240,952,648,152.83
  5. Step 5: Solve for x
    x = 240,952,648,152.83/557,927.58
  6. Step 6: Final answer
    x = 431,870.83

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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.