Home / 815,298.48-1,125,215.72-493,010.89

Finding the Fourth Proportional to 815,298.48, 1,125,215.72 and 493,010.89

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Solution

The fourth proportional to 815,298.48, 1,125,215.72 and 493,010.89 is: 680,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,298.48 : 1,125,215.72 = 493,010.89 : x
  2. Step 2: Convert to fraction form
    815,298.48/1,125,215.72 = 493,010.89/x
  3. Step 3: Cross multiply
    815,298.48x = 1,125,215.72 × 493,010.89
  4. Step 4: Simplify right side
    815,298.48x = 554,743,600,129.89
  5. Step 5: Solve for x
    x = 554,743,600,129.89/815,298.48
  6. Step 6: Final answer
    x = 680,417.80

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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.