Home / 557,779.69-769,741.95-303,130.90

Finding the Fourth Proportional to 557,779.69, 769,741.95 and 303,130.90

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Solution

The fourth proportional to 557,779.69, 769,741.95 and 303,130.90 is: 418,323.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,779.69 : 769,741.95 = 303,130.90 : x
  2. Step 2: Convert to fraction form
    557,779.69/769,741.95 = 303,130.90/x
  3. Step 3: Cross multiply
    557,779.69x = 769,741.95 × 303,130.90
  4. Step 4: Simplify right side
    557,779.69x = 233,332,570,071.26
  5. Step 5: Solve for x
    x = 233,332,570,071.26/557,779.69
  6. Step 6: Final answer
    x = 418,323.89

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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.