Home / 557,962.90-769,979.73-303,320.50

Finding the Fourth Proportional to 557,962.90, 769,979.73 and 303,320.50

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Solution

The fourth proportional to 557,962.90, 769,979.73 and 303,320.50 is: 418,577.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,962.90 : 769,979.73 = 303,320.50 : x
  2. Step 2: Convert to fraction form
    557,962.90/769,979.73 = 303,320.50/x
  3. Step 3: Cross multiply
    557,962.90x = 769,979.73 × 303,320.50
  4. Step 4: Simplify right side
    557,962.90x = 233,550,636,693.47
  5. Step 5: Solve for x
    x = 233,550,636,693.47/557,962.90
  6. Step 6: Final answer
    x = 418,577.36

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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.