Home / 900,890.13-1,243,228.53-492,992.07

Finding the Fourth Proportional to 900,890.13, 1,243,228.53 and 492,992.07

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Solution

The fourth proportional to 900,890.13, 1,243,228.53 and 492,992.07 is: 680,329.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,890.13 : 1,243,228.53 = 492,992.07 : x
  2. Step 2: Convert to fraction form
    900,890.13/1,243,228.53 = 492,992.07/x
  3. Step 3: Cross multiply
    900,890.13x = 1,243,228.53 × 492,992.07
  4. Step 4: Simplify right side
    900,890.13x = 612,901,806,507.91
  5. Step 5: Solve for x
    x = 612,901,806,507.91/900,890.13
  6. Step 6: Final answer
    x = 680,329.14

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Double scale
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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.