Home / 900,886.98-1,243,224.17-492,988.92

Finding the Fourth Proportional to 900,886.98, 1,243,224.17 and 492,988.92

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Solution

The fourth proportional to 900,886.98, 1,243,224.17 and 492,988.92 is: 680,324.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,886.98 : 1,243,224.17 = 492,988.92 : x
  2. Step 2: Convert to fraction form
    900,886.98/1,243,224.17 = 492,988.92/x
  3. Step 3: Cross multiply
    900,886.98x = 1,243,224.17 × 492,988.92
  4. Step 4: Simplify right side
    900,886.98x = 612,895,738,421.25
  5. Step 5: Solve for x
    x = 612,895,738,421.25/900,886.98
  6. Step 6: Final answer
    x = 680,324.78

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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.